How do I know if I have Dysautonomia / POTS?

You may suspect you have Dysautonomia / POTS if you consistently experience a rapid, sustained increase in heart rate upon standing, accompanied by symptoms like lightheadedness, brain fog, or fatigue that resolve when lying down.

Recognizing the Signs

Early symptoms of Dysautonomia / POTS (Postural Orthostatic Tachycardia Syndrome) often include heart palpitations, dizziness, nausea, exercise intolerance, and "brain fog." Many patients notice a distinct pattern where their heart rate jumps by at least 30 beats per minute within 10 minutes of standing. Unlike normal physiological responses, these symptoms feel debilitating and occur consistently rather than occasionally.

When to See a Doctor

Schedule an appointment if your symptoms interfere with daily activities. When speaking to your primary care physician, keep a "symptom log" for two weeks. Clearly state: "I am concerned about Dysautonomia / POTS because I notice a significant, reproducible spike in my heart rate and sudden dizziness whenever I stand up." Ask specifically for an "active stand test" or, if indicated, a formal Tilt Table Test to assess your autonomic nervous system's response.

Red Flags and Advocacy

Seek urgent medical evaluation if you experience fainting (syncope), chest pain, severe shortness of breath, or neurological deficits like loss of vision or sudden weakness. If a provider dismisses your concerns, remember that you are the expert on your own body. You may say, "I understand you have concerns, but these symptoms are impacting my quality of life; can we investigate an autonomic referral or a cardiology consultation to rule out Dysautonomia / POTS?"

Distinguishing Normal Variation

It is normal for heart rate to increase slightly when standing, but Dysautonomia / POTS is distinct because the heart rate remains elevated and symptomatic for as long as you are upright. If your heart rate stabilizes quickly and you feel well, it is likely a normal physiologic response rather than a chronic autonomic disorder.

Disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition.

References

• NIH Genetic and Rare Diseases Information Center (GARD): Postural Orthostatic Tachycardia Syndrome


• Dysautonomia International: Understanding POTS


• Orphanet: Postural Orthostatic Tachycardia Syndrome