Typical symptoms of postural tachycardia syndrome
| Cardiac symptoms |
| Palpitations |
| Lightheadedness |
| Chest discomfort |
| Dyspnea |
| Noncardiac symptoms |
| Mental clouding (“brain fog”) |
| Headache |
| Nausea |
| Tremulousness |
| Blurred or tunnel vision |
| Sleep disturbances |
| Fatigue |
| Presyncope |
| Gastrointestinal pain, heartburn, diarrhea, constipation |