Hi, I'm Hillary i just joined the forum. I was diagnosed with POTS earlier this year. But my symptoms have gotten a lot worse in the last month. And i have experienced the tingling feeling in select fingers. About two weeks ago actually i went to the ER because it started in my left finger and then spread up my arm, and through my face. The Dr. told me it had nothing to do with POTS, but he also didn't even know it was when i told him. I never found out what is was, but i do understand how you feel. I hope it gets better for you! Hillary