I was finally diagnosed with POTS at 18 (I'm 21 now) after a couple of years of passing out, etc, but I'm fairly certain I've been having symptoms since I was about 10. (One of the biggest things my mom points out-very dilated pupils. small, but a sign nonetheless). Before my diagnosis, I was diagnosed with vocal cord dysfunction and went to breathing therapy, diagnosed with various personality disorders, because obviously if they couldn't find anything wrong, I must be nuts. I had an endoscopy, went on an extremely low carb diet (which I hated), had a laporoscopy to look for endometriosis, went on various anti-psychotic medications (which made things worse) and there may be other things that I simply can't remember. I went from specialist to specialist and saw so many doctors I could probably not even name each of their specialties, much less their names. I got the anxiety diagnosis many times, as well. I do have an anxiety disorder, which made it difficult to tell people that I knew there was something else wrong. So like basically everyone else, I went through a lot before I got the right diagnosis. Meg