Naomi, I am not sure. I have never had a doctor tell me that I couldn't have Orthostatic Hypotension with P.O.T.S but have not been working with experts either. Maybe someone in the forum will be able to help? I do have many of the other POTS symptoms as well, dizziness, syncope, tachycardia, shortness of breath, anxiety, Gi troubles, headaches, and many many more as I am sure we are all well aware of. I didn't know that Orthostatic Hypotension was a different diagnosis than POTS. I wonder if one can have them together or if I am dealing with something else entirely?? Ugh. So frustrating