Short Answer
POTS (Postural Orthostatic Tachycardia Syndrome) produces symptoms identical to panic attacks—racing heart, breathlessness, chest tightness, lightheadedness—through autonomic dysfunction and blood pooling rather than psychological distress. Your body mimics anxiety without your mind creating it.
What This Means
You stand up and suddenly heart pounding, dizzy, cannot catch your breath. The sensations are indistinguishable from panic yet you were calm just moments before. Doctors may have dismissed you as anxious because POTS looks psychiatric until it is measured physiologically.
The confusion is reasonable—both conditions involve sympathetic nervous system activation. But POTS has specific triggers (position changes, heat, large meals) and measurable markers (heart rate increase 30+ bpm on standing). Understanding the difference matters for treatment.
Why This Happens
In POTS, blood pools in the lower body when standing instead of returning to the heart. This triggers compensatory tachycardia—the heart races to maintain blood pressure and brain perfusion. The result feels exactly like panic but originates in circulatory dysfunction.
POTS is common after viral illness, in hypermobile Ehlers-Danlos, and with autoimmune conditions. It is underdiagnosed, particularly in women who get labeled anxious when showing classic symptoms. The medical system often fails to take physiological complaints seriously in apparently healthy young people.
What Can Help
- Get tilt table testing: Proper diagnosis requires objective measurement. Standing heart rate and blood pressure monitoring can demonstrate POTS pattern.
- Hydration and salt: Increased blood volume helps reduce orthostatic stress. Medical supervision recommended for salt intake.
- Compression garments: Abdominal and thigh compression reduces blood pooling and symptom severity.
- Conditioning protocols: Recumbent exercise (rowing, swimming, cycling) improves blood volume and vascular tone without triggering syncope.
- Medication options: Beta blockers, midodrine, fludrocortisone, and other medications target specific POTS mechanisms.
When to Seek Support
If you have symptoms of orthostatic intolerance—worse standing, better lying down—seek autonomic specialist evaluation before accepting anxiety diagnosis. POTS is treatable but requires knowledgeable providers. Dysautonomia International and similar organizations maintain referral lists.
People Also Ask
Research References
Low et al. (2009) - Postural tachycardia syndrome; Grubb (2008) - Neurocardiogenic syncope and POTS; Benarroch (2012) - Postural tachycardia syndrome
Robert Greene
Author, Founder, Navy Veteran & Trauma Survivor
Robert Greene is the author and founder of Unfiltered Wisdom, a US Navy veteran, and a trauma survivor with over 10 years of experience in nervous system regulation and somatic healing. He is certified in Yoga for Meditation from the Yogic School of Mystic Arts (Dharamsala, India, 2016) and affiliated with Holistic Veterans, a 501(c)(3) nonprofit serving veterans in Santa Cruz, California.