Hopful-girl.. I just wanted to respond to your question about others who have fluctuations in BP. I have the same problem. While sitting and lying my BP tends to be high (130/90 with beta blockers) but when I stand it will be around 140/100 the first minute then it will be 100/60 at three minutes and then 150/90 at five minutes and then back down again. My HR just steadily goes up, it doesn't seem to bottom out. My doc suggests that it is the fluctuations are what cause me to have syncopal or near syncopal episodes. It is making it a challenge to treat because I also have asthma so I cannot be on too high a dose of beta blockers without having trouble. Not to mention trying to combat the hypovolemia with extra salt....they can't quite figure out what to do with that one . I also agree that it is difficult to find physicians who are well versed in POTS or autonomic neuropathy, and even the ones who you may see that are experts readily admit they don't know much about the mechanism or have a certain tx that works for all people. Having worked in the medical field (pediatric oncology) I have learned the benefit of being my own advocate. In fact just today, I brought a research article along with me to my dental appointment. Most doctors will take the time to read an article from a peer reviewed journal, and it will help back up the information we all gather, thankfully, from the internet. Cheers, Sheridan Age 28 Dx August 2006-POTS, hypovolemia October 2006-autonomic neuropathy, testing for gastroperesis Meds: Mestinon 60mg tid, Labetalol 150mg bid, Advair, Xopenex, Omeprazole Other helps: Ginger tea for nausea, increased fluids, increased salts, swimming