My son has had every possible test done by immunologist, infectious disease, internal medicine and neurology. The only conclusion that any of these Doctors came up with, was the neurologist. She said that his autonomic nervous system has been damaged from the EBV, which is causing..... adrenal fatigue, orthostatic hypotension, heart rate variability issues, GI issues, headaches. She started him on Alpha Lipoic Acid back in November to reverse the damage and has been experimenting with drugs like.... Mestinon, Midodrine, Florinef and Bethanechol. He couldn't take the Mestinon, due to loss of appetite and loosing weight. Nor could he take the Midodrine, due to it raising his blood pressure too high. She has now started him on the bethanechol and will be adding in Northera soon. He still takes the Florinef, as well. His fatigue has gotten even worse than it was when we brought him home from school and I didn't think that was possible. He has no life at 18.... doesn't feel like doing anything and never leaves the house, because he's so week and tired. He just never feels well. His Neurologist keeps telling us that it will take time with the meds, but she is confident that she can help him. She has a proven history of treating past patients with the same illness. It's hard to be optimistic about any treatment at this time, because he has been dealing with doctors and the runaround for over 2 years now. How are you doing with the illness?