Thanks so much for the posting back.Yes I seen a pots doctor at vanderbilt went there twice.locally I have gastrologist,cardiologist, and an endocrinologist, and a neurologist.and my allergist.im keeping my cardiologist in the driver seat until I get to ohio.after vanderbilt vists my husband and son found doctor in penn fl.he was very helpful in explaining pots.dsyautonomia, as he called it stem into many other conditions and causes.which would entail many other test.his own condition of pots make appt very difficult for him to keep.also he is not taking any other patients and I have 30 year old son who is also suffering from dsyautonomia. He had tilt table test my doctor ordered it and with out med induced went to 150 from his lying at 72.he was put on pindolol and lexapro, and gabapentin for pain.we know hereditary dsyautonomia is there.we are also going for genetics testing.i wanted dr grubb in my doctors driver seat.my cardiologist agrees.i am more med sentative than my son.i have been on Paxil, zyrtec, tried also lyrica and cymbalta.see thourgh the years I was told, mitral valve, then cfs to anxiety, panic attack and many gastro poblem.the more surgeries I had in my life the worse I got.my meds includes my beta blocker, my stockings, staying hydrated. Staying mobile.encouraging my son to also join the forum.