Do I Have POTS or Is It Anxiety? How Functional Medicine May Help You Find Answers
Dizziness when you stand up. A racing heart. Shakiness, sweating, shortness of breath, brain fog, or overwhelming fatigue. These symptoms can feel frightening—and because they may also occur with anxiety, it is not always clear what is happening.
You may find yourself wondering: “Do I have POTS, or is this anxiety?”
The short answer is that symptoms alone cannot reliably distinguish one from the other. Postural orthostatic tachycardia syndrome, commonly called POTS, and anxiety can produce similar physical sensations. They can also occur together. A careful medical evaluation is therefore important before assuming that symptoms are caused by either condition.
At Heroic Health Solutions, functional medicine is used to look at the broader picture. That may include your symptom patterns, medical history, nutrition, sleep, stress, hormone health, gut health, medications, and other possible contributors. The goal is personalized healthcare—not a one-size-fits-all conclusion.
What Is POTS?
POTS is a form of dysautonomia, meaning it involves dysfunction of the autonomic nervous system. This system regulates functions your body normally handles automatically, including heart rate, blood pressure, sweating, digestion, and temperature control.
For adults, POTS is generally characterized by a sustained increase in heart rate of at least 30 beats per minute within 10 minutes of standing or being placed upright on a tilt table. The heart-rate change occurs without the blood-pressure drop required for a diagnosis of orthostatic hypotension. Symptoms typically worsen while upright and improve after lying down.
A heart-rate increase by itself does not confirm POTS. Clinicians must also consider how long symptoms have been present, whether they occur consistently when upright, and whether another condition could explain them. Dehydration, acute illness, blood loss, medication effects, anemia, thyroid disorders, and other health concerns can sometimes cause similar findings.
You can read more about the clinical features and diagnosis of POTS through Johns Hopkins Medicine.
What Does Anxiety Feel Like?
Anxiety is a normal response to stress or perceived danger. When it becomes frequent, difficult to control, or disruptive to daily life, it may be part of an anxiety disorder.
Anxiety can activate the body’s “fight-or-flight” response, producing very real physical symptoms. These may include:
A rapid or pounding heartbeat
Chest tightness
Shortness of breath
Sweating or feeling hot
Shakiness
Dizziness or lightheadedness
Nausea or digestive discomfort
Muscle tension
Difficulty sleeping
Trouble concentrating
A sense of fear, dread, or impending danger
These symptoms are not “all in your head.” They reflect physical changes in the nervous system and stress response. However, similar symptoms can arise from POTS and other medical conditions, which is why a complete evaluation matters.
POTS vs. Anxiety: Why Are They So Easily Confused?
Both POTS and anxiety can affect heart rate, breathing, concentration, digestion, and energy. A sudden racing heart or feeling faint can also cause understandable fear, even when anxiety was not the original trigger.
The overlap can create a difficult cycle:
Standing causes physical POTS symptoms.
Those unexpected sensations feel alarming.
Fear activates the stress response.
The stress response intensifies the heartbeat, breathing changes, or shakiness.
That does not mean anxiety caused the original symptoms. It also does not mean anxiety should be ignored. POTS and anxiety are separate conditions, but they can coexist and influence one another.
A person should not be diagnosed with POTS based only on symptoms, a smartwatch reading, or an at-home standing test. Likewise, recurring physical symptoms should not automatically be attributed to anxiety without considering appropriate medical causes.
Twelve Signs Your Symptoms May Need Evaluation for POTS
No single symptom proves that you have POTS. The overall pattern—especially the connection to standing—is more informative.
Consider discussing POTS or another form of orthostatic intolerance with a qualified provider if you experience:
A racing heart after standing. Your heart rate rises noticeably when moving from lying or sitting to an upright position.
Lightheadedness while upright. You frequently feel dizzy, unsteady, or close to fainting when standing.
Symptoms that improve when you lie down. A consistent improvement after returning to a horizontal position can be an important clue.
Difficulty standing still. Waiting in line, showering, cooking, or standing during conversations makes symptoms worse.
Heat intolerance. Hot weather, warm rooms, or hot showers appear to trigger dizziness, weakness, or rapid heart rate.
Exercise intolerance. Even moderate activity produces disproportionate fatigue, palpitations, or prolonged symptom worsening.
Persistent fatigue. You experience low energy that is not adequately explained by activity or lack of sleep.
Brain fog. Concentration, word recall, or mental clarity becomes more difficult, particularly while upright or during a flare.
Shakiness or excessive sweating. You experience tremulousness, clamminess, or changes in sweating alongside other symptoms.
Digestive symptoms. Nausea, bloating, constipation, abdominal discomfort, or early fullness occur with your other symptoms.
Symptoms after an illness or other health event. Some people report that symptoms began after an infection, surgery, pregnancy, or another physiological stressor.
Recurring symptoms despite anxiety treatment. Appropriate anxiety care may help emotional distress but does not resolve the posture-related physical pattern.
These signs are reasons to seek an evaluation, not a diagnostic checklist. Other conditions can produce the same symptoms.
Clues That May Help Distinguish POTS From Anxiety
The most useful distinction is often not what the symptoms feel like but when and why they occur.
Pattern POTS may be more likely Anxiety may be more likely Position Symptoms reliably worsen after standing Symptoms may occur in any position Relief Lying down often helps Changing position may not consistently help Triggers Standing, heat, showers, meals, or physical exertion Worry, uncertainty, conflict, or perceived threat Thoughts and emotions Fear may follow physical symptoms Fear or worry may precede physical symptoms Heart rate A sustained, measurable increase occurs while upright Heart rate can rise, but not necessarily in a posture-dependent pattern Duration Symptoms may persist while upright Panic symptoms often peak and then gradually subside
This comparison is only a guide. POTS symptoms are not always identical, and anxiety can sometimes appear without an obvious emotional trigger. Testing and clinical judgment are needed to make an accurate diagnosis.
Could It Be Something Other Than POTS or Anxiety?
Yes. Several health concerns may cause dizziness, palpitations, fatigue, or brain fog. A responsible evaluation may consider:
Anemia or iron deficiency
Dehydration
Blood loss
Thyroid dysfunction
Abnormal heart rhythms
Low blood sugar or blood sugar fluctuations
Medication or stimulant effects
Sleep disorders
Nutrient deficiencies
Vestibular disorders
Infection or post-infectious symptoms
Hormonal changes
Other autonomic or cardiovascular conditions
This is one reason root cause medicine should not begin with a predetermined answer. Appropriate testing is used to investigate plausible explanations and rule out conditions requiring conventional or specialty treatment.
How Is POTS Diagnosed?
POTS is diagnosed through medical history, symptom assessment, heart-rate and blood-pressure measurements, and exclusion of other causes. Evaluation may involve an active standing test or a tilt-table test.
A clinician may review:
Whether symptoms worsen while upright
How long symptoms have been present
Heart rate and blood pressure while lying down and standing
Current medications and supplements
Recent illnesses or major health changes
Hydration and nutritional status
Menstrual or other sources of blood loss
Cardiovascular, neurological, endocrine, and mental health history
Laboratory or cardiac testing when indicated
Some patients track heart rate with a wearable device, but consumer technology can be inaccurate and does not replace clinical assessment. Do not deliberately provoke severe symptoms or perform unsupervised testing if you are at risk of fainting.
A Functional Medicine Approach to POTS-Like Symptoms
Functional medicine takes a whole-person view of health. In addition to determining whether someone meets established POTS criteria, a functional medicine doctor may explore factors that could be contributing to the patient’s symptom burden.
Depending on the individual, an evaluation may include:
Nutrition and hydration
Sleep quality
Stress and cortisol-related symptom patterns
Hormone health
Thyroid health
Gut health and digestive symptoms
Nutritional status
Inflammation
Medication and supplement use
Activity level and exercise tolerance
Relevant environmental or medical history
This does not mean every possible factor causes POTS, nor does it mean that extensive testing is appropriate for every patient. Testing should be selected according to the person’s symptoms, history, examination, and clinical needs.
At Heroic Health Solutions, the functional medicine process is designed around a detailed history, objective assessment, and personalized recommendations. A care plan may incorporate nutrition, sleep strategies, stress management, appropriate movement, supplements when indicated, and coordination with other healthcare professionals.
Some patients benefit from this broader approach, but results vary. Functional medicine should complement—not replace—necessary cardiovascular, neurological, psychiatric, or emergency care.
Gut Health, Hormones, and Chronic Fatigue Support
Patients searching for functional medicine near me often have more than one concern. A person experiencing a rapid heart rate may also report bloating, constipation, fatigue, sleep disruption, menstrual changes, weight challenges, or brain fog.
These symptoms deserve thoughtful evaluation, but they should not be forced into a single explanation.
Gut health
The autonomic nervous system helps regulate digestion, so some people with POTS experience nausea, abdominal discomfort, constipation, or changes in appetite. Stress may also affect digestive symptoms through the brain-gut connection.
A personalized gut health assessment may consider food intake, hydration, bowel patterns, nutritional gaps, and other clinically relevant factors. It should not assume that an unproven food sensitivity or microbiome imbalance is responsible for every symptom.
Hormone and thyroid health
Hormone changes may affect sleep, mood, temperature regulation, energy, and menstrual symptoms. Thyroid dysfunction can also cause palpitations, fatigue, anxiety-like sensations, and weight changes.
When appropriate, hormone health and thyroid health may be evaluated as part of the differential diagnosis. The purpose is to identify or rule out plausible contributors—not to promise that “balancing hormones” will resolve POTS.
Fatigue and inflammation support
Chronic fatigue support begins by investigating possible causes. Sleep quality, anemia, nutrition, thyroid function, infection history, medications, mental health, and other factors may need attention.
Similarly, inflammation support should be based on the individual’s health history and evidence—not on the assumption that all chronic symptoms are caused by inflammation.
What Treatment or Support May Be Recommended?
Care depends on the diagnosis, medical history, symptom severity, and individual risk factors. A provider may discuss strategies such as:
Drinking adequate fluids
Adjusting salt intake when medically appropriate
Using compression garments
Eating smaller or more frequent meals
Avoiding known triggers
Following a gradual, supervised exercise or rehabilitation plan
Improving sleep habits
Addressing nutritional deficiencies
Managing coexisting anxiety or stress
Reviewing medications that may worsen symptoms
Considering prescription treatment through an appropriate medical clinician
Increasing salt or fluids is not safe for everyone, particularly people with certain heart, kidney, or blood-pressure conditions. Exercise can also worsen symptoms if progressed too quickly. Ask a qualified provider for personalized recommendations.
Anxiety support may include counseling, cognitive behavioral therapy, mindfulness practices, medication, or a combination of approaches. Treating anxiety does not invalidate physical symptoms. It can be an important part of patient-centered care when anxiety is present alongside POTS or another medical condition.
Functional Medicine and Conventional Care Can Work Together
Conventional medicine plays an essential role in diagnosing POTS, excluding dangerous causes of symptoms, and providing evidence-based treatment. Functional medicine may add a more detailed exploration of lifestyle, nutrition, sleep, stress, and interconnected health concerns.
Integrative medicine similarly combines conventional care with selected complementary approaches. The terms are sometimes used interchangeably, but they are not always identical.
For many patients, the safest and most useful approach is coordinated care. A functional medicine practitioner may work alongside a primary care clinician, cardiologist, neurologist, mental health professional, physical therapist, or another specialist. Good preventive health and wellness optimization should never require ignoring urgent symptoms or established medical care.
When to Seek Urgent Medical Care
Do not assume that new or severe symptoms are caused by POTS or anxiety. Call emergency services or seek urgent evaluation for:
New, severe, or persistent chest pain
Significant trouble breathing
Fainting, especially during exercise
A new irregular heartbeat or severe palpitations
Sudden weakness, numbness, confusion, or difficulty speaking
A severe or unusual headache
Unexplained bleeding
Severe abdominal pain
Rapidly worsening symptoms
Thoughts of self-harm or suicide
These symptoms require timely medical assessment.
Why Choose Heroic Health Solutions?
Heroic Health Solutions offers a modern functional medicine perspective for adults seeking personalized healthcare in Stuart, Florida. The practice emphasizes listening to the patient’s history, using objective information when appropriate, and developing recommendations around the individual’s needs and goals.
Patients may choose Heroic Health Solutions for:
Personalized, patient-centered care
A root-cause-focused assessment
Attention to whole-body and lifestyle factors
Support for gut, hormone, thyroid, stress, and metabolic concerns
Long-term preventive health and wellness goals
Clear education and ongoing plan adjustments
If unexplained dizziness, fatigue, brain fog, digestive symptoms, or heart-rate changes are affecting your life, schedule a consultation through Heroic Health Solutions to discuss whether its functional medicine approach may be appropriate for you.
Frequently Asked Questions
Can anxiety cause the same symptoms as POTS?
Anxiety can cause a rapid heartbeat, dizziness, sweating, shaking, nausea, shortness of breath, and concentration difficulties. POTS is more specifically associated with symptoms that develop or worsen while upright and often improve when lying down. Because the symptoms overlap, an evaluation is important.
Can POTS be mistaken for anxiety?
Yes. The racing heart, shakiness, sweating, and dizziness associated with POTS may resemble anxiety or a panic attack. Some people also experience both conditions. Neither diagnosis should be made solely by comparing symptom lists online.
Is POTS caused by anxiety?
POTS is an autonomic nervous system disorder, not simply anxiety. Emotional stress may intensify symptoms, and living with unpredictable physical symptoms can contribute to anxiety, but that does not make anxiety the cause of POTS.
What heart-rate change is associated with POTS?
In adults, one diagnostic feature is a sustained increase in heart rate of at least 30 beats per minute within 10 minutes of standing or upright tilt. Additional criteria must also be met, and other causes must be excluded. A heart-rate measurement alone does not establish the diagnosis.
Can I test for POTS at home?
At-home heart-rate observations may provide information to share with a clinician, but they cannot confirm POTS. Unsupervised standing tests can also be unsafe for someone prone to fainting. Formal assessment should be completed by a qualified healthcare professional.
What kind of provider diagnoses POTS?
A primary care clinician may begin the evaluation. Depending on symptoms and local resources, a cardiologist, neurologist, or clinician experienced in autonomic disorders may be involved. Functional medicine can be part of a broader care plan but should not delay an appropriate specialist evaluation.
How may functional medicine support someone with POTS-like symptoms?
Functional medicine may evaluate nutrition, hydration, sleep, stress, gut health, hormone health, thyroid health, medications, and other potential contributors. Recommendations should be individualized and coordinated with necessary medical care.
How do I find functional medicine near me?
Look for a qualified practitioner who explains their credentials, uses medically appropriate testing, sets realistic expectations, and coordinates with conventional clinicians when needed. Adults in Stuart, Florida, can contact Heroic Health Solutions to ask about its patient-centered functional medicine services.
Finding the Right Path Forward
If you are asking, “Do I have POTS, or is it anxiety?” you deserve more than an assumption. Both conditions can cause genuine, disruptive symptoms, and they may occur together. The right next step is a careful assessment of your symptom pattern, heart rate and blood pressure, medical history, and other possible explanations.
Functional medicine may be helpful for people who want a personalized, root-cause-focused view of their health. It can be part of a coordinated plan that considers nutrition, sleep, stress, digestive health, hormones, and long-term wellness while respecting the role of conventional and specialty care.
Results vary, and no approach is right for everyone. Schedule a consultation with Heroic Health Solutions to learn whether functional medicine may be right for you.
This blog is for educational purposes only and is not a substitute for medical advice, diagnosis, or treatment. Results vary. Always consult a qualified healthcare provider for personalized recommendations and urgent symptoms.
