Thanks Kjay and Corina for responding. A lot has happened since I last posted. My daughter's cardiologist is in the process of trying to refer her to the Mayo Clinic in Scotsdale, Arizona for autonomic testing by a neurologist. I'm wondering, however, if they will test her for epilepsy again......is that one of the tests they run when they are doing autonomic testing or should we see a neurologist here while we are waiting for the Mayo clinic stuff to be set up? When she blacks out it is almost always followed by a seizure and, although she tested negative for epilepsy when she had the test in the fourth grade, I'm thinking it is time for a follow up since apparently only 3% of people with dysautonomia have seizures. Anyway, I'm hoping we don't have to wait long to get the referral. I'd like to get her some help as soon as possible.