Shezian, yes, the main symptom to define POTS is an increase of 30 or more beats per minute when standing. The blood will not stay in the brain and heart.

I went to many doctors, the ER... NO one knew what was wrong. My integrative is not in the same city so I was too ill to travel.

I went to a cardiologist since there is a lot of chest pain with it. He had no idea but talked to another doctor there and he said it could be Dysautonomia but he didn't know much about it.

I then learned about Dysautonomia and POTS is Dysautonomia but more specific with the heart beating so fast.

I then called my integrative doctor and finally we drove to see him. I was SO ILL. Unable to walk, in my wheelchair, very upset. MUCH too ill for the tilt table test. She did other testing right there. I was right, it was POTS.

So we added more supplements and did more blood tests, got my hormones balanced and I slowly improved. My serotonin and Vit D were LOW. They are much better and that was helpful in many ways.