POTS is difficult to diagnose because there are no visible symptoms (except for syncope, of course). The only definite way to diagnose it is a tilt-table test.
For this test, you are hooked up to an electrocardiogram (EKG) and blood pressure cuff. You are strapped to the tilt-table, which is basically a motorized hospital bed. Your pulse and blood pressure are taken while lying down, then the table is slowly lifted up. It stops at about an 80 degree angle, so you are almost standing upright. Your blood pressure is taken every minute or so, and the test continues until you faint or after about 30 minutes. The results are read by a cardiologist, who makes a diagnosis.
When I had this test, I did not faint, but I came close. I felt incredibly dizzy and asked for the test to stop. I was crying- it was horrible. Thankfully it was over, and when the EKG was read by my doctor, it was determined that I have POTS.
- Dizziness upon standing
- Sensitivity to heat, cold, bright light
- Shortness of breath
REMEMBER: I'M NOT A DOCTOR- I'M ONLY 16! This information is from my own personal research and knowledge. I'm just telling you what I know. Don't try to diagnose yourself. If you think you may have POTS, go see a doctor.