Hi there- I am sorry to hear that your daughter is also going through this. It's a horrible illness that is such a grey area for Doctors, it seems. My son is currently seeing a neurologist that specializes only in the autonomic nervous system. She is well aware of EBV and CFS. After being tested several times with a tilt table test and ANSAR test, it shows that his parasympathetic is not working properly. She said that the EBV (along with possible other stress factors) has damaged his autonomic nervous system. She currently has him on Alpha Lipoic Acid to reverse the damage, Mestinon for his heart rate variability issues (showed up on testing), Florinef to help keep sodium in his body (he can't stay hydrated) and Northera, which he just started on Friday (for orthosataic hypertension and help adrenal glands kick in when not working properly) This has been a trial and error with meds. since November, due to him having some side effects with some other meds. She wanted to do IV therapy with the Alpha Lipoic Acid, but can't due to blood clots in both arms from a hospital visit last year. I want to try the multiple IV therapies out there that seem to help some people with EBV and CFS, but can't consider due to this issue. It makes perfect sense to me about the autonomic nervous system and all of his systems being related to this, so we are praying that this drug therapy helps him at some point! He has been home from school since October and has hardly left the house (except for doctor appointments), due to the Chronic Fatigue debilitating him. He also has GI issues, chronic headaches, insomnia, low body temperature and the list goes on. He has had extensive testing from infectious disease and immunology, so this is our last resort. What kind of testing has your daughter had, so far?