Hi, I am going to attempt to make a long story short. My life was going great I was very active and healthy until a little over a year ago. It was like literally overnight my life was turned upside down. I have many symptoms: high heart rate when sitting or standing, migraines, I have had vision loss, fainting, and horrible extremity pain. I was diagnosed with POTS about a month or so ago. My doctor has decided to do a nerve conduction test. Has anyone ever had that done before? If so what came of it?