Yeah the Tachycardia bothers me but the dizzy spells are what gets me, and the exhuastion. With the Tachycardia under control the dizzy spells shoud be too right? I was diagnosed in 2006 with POTS in 2006 but I still don't understand any of it. Thats why I am on here hopefully talking to people with the same problems can make it to where I don't feel alone or crazy! I am new on here... I don't even know how to put my dx on the bottom like everyone else has.