What are the typical symptoms of postural orthostatic tachycardia syndrome (POTS)?

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Last updated: October 16, 2026 • View editorial policy

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Symptoms of POTS

POTS presents with predominant and bothersome orthostatic symptoms that characteristically improve with lying down, and these symptoms must dominate the clinical presentation. 1

Core Orthostatic Symptoms

The hallmark symptoms of POTS are positional and include:

  • Lightheadedness/dizziness - occurs upon standing and improves with recumbence
  • Palpitations - awareness of rapid heartbeat when upright
  • Fatigue - often severe and debilitating
  • Exercise intolerance - inability to tolerate physical activity
  • Presyncope - feeling faint or "about to pass out"
  • Blurred vision - visual disturbances when standing
  • Headaches - can be intractable in some patients 1, 2

The key diagnostic feature is that these symptoms worsen with upright posture and improve with recumbence (lying down). 1 There is no single cardinal symptom required, nor a specific number of symptoms needed for diagnosis - the pattern of orthostatic intolerance is what matters 1.

Additional Common Symptoms

Beyond the core orthostatic features, patients frequently experience:

Cognitive Symptoms

  • "Brain fog" - difficulty concentrating, mental cloudiness 2
  • Cognitive dysfunction

Gastrointestinal Symptoms

  • Nausea and vomiting
  • Gastroparesis (delayed gastric emptying)
  • Bloating
  • Constipation or diarrhea
  • Anorexia 2, 3

Generalized Symptoms

  • Generalized weakness
  • Muscle pain
  • Tremulousness
  • Shortness of breath
  • Sleep disturbance 2, 3

POTS Plus: Extended Symptom Complex

Some patients meet criteria for "POTS Plus," where they have additional debilitating noncardiovascular symptoms that may be more disabling than the orthostatic symptoms themselves 1. These include:

  • Gastric emptying problems (too fast or slow) with intractable nausea and cyclic vomiting
  • Severe constipation and diarrhea
  • Neurogenic bladder/incontinence/urinary retention
  • Severe chronic pain
  • Joint hypermobility
  • Intractable headaches
  • Significant flushing/anaphylaxis-like symptoms
  • Severe food intolerances
  • Neurological symptoms (paresthesia, numbness, neuropathic pain) 1

Clinical Presentation Patterns

Symptom presentations vary considerably between patients with different symptom clusters, and no specific pattern is required for diagnosis. 1 The syndrome predominantly affects females (approximately 90% of cases) with peak incidence between ages 13-29 years 2.

Important Clinical Context

In 30-40% of cases, symptoms begin within 3 months after infections such as SARS-CoV-2, Epstein-Barr virus, or influenza 2. A survey of 4,835 patients found that approximately 70% reported substantial functional impairment with loss of school or work participation, and the median diagnostic delay was 24 months 2.

Critical Diagnostic Caveat

Symptoms must be chronic, persisting for at least 3 months, to meet POTS diagnostic criteria. 1 The presence of symptoms alone without meeting hemodynamic criteria (sustained heart rate increase ≥30 bpm in adults or ≥40 bpm in adolescents within 10 minutes of standing) does not constitute POTS, though these patients may have "postural symptoms without tachycardia" (PSWT) and may benefit from similar management approaches 1.

References

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