That is interesting about the SSRI evening out your vitals, MomtoGiuliana. I will look more into it. Thanks for your input! Sarah, thank you for the welcome! I wish these illnesses did not exist, but it is nice to be able to connect with people who have POTS, especially the hyperadrenergic type, and not feel so lost and confused. I do get very symptomatic on standing, and it's become more severe in the past few months. I get very shaky/start to tremble, feel hot, very dizzy, can't think clearly, vision gets dark etc. It sounds very similar to the symptoms you described, and the excess adrenaline response makes sense. I will have to take another look at the Florinef. My cardio really wants me to try it, it is my endocrinologist who was against it, so I feel like I am stuck between differing medical opinions. I will bring it up with my doctor again. Thank you for the physician list link. The closest doctor to me is Dr. Raj, so the plan is for me to get referred for testing and treatment there in the (hopefully near) future. All the best, JaS