Thank you, Alexia. I was seeing an endocrinologist and an electrophysiology cardiologist, but I am not sure if I will continue with either of them. The cardio is the one that mentioned POTS and perscribed Florinef and beta blockers, but he doesn't seem particularly interested in how I am actually doing. I'm not sure how knowledgable he is.... I am trying to educate myself as much as possible. I sincerely appreciate the response. Take care. Kristy