We took daughter to Dr. W., specializing in immunology, infectious disease, and he would take you if other doctors can't figure out your problem. He claims to understand and help CFIDS. When tests results didn't show what he was looking for (certain immune problems), he totally didn't understand my daughter and treated her unkindly. He said her not looking at him attentively was because she was tired of doctors, and she had better talk! I told him she has visual disturbance, cognitive difficulty and terrible nausea that was heightened by just walking to his office, that she isn't against him!! He thought the irritable bowel was a separate issue. If anything, he said, her body seems to be fighting! (He never said, that this too could be a problem of her body fighting even if the enemy is gone, but I think this occurs with some patients.) Because the tests didn't show what he was looking for, He said she doesn't have a TRUE case!! I disagree! A psychiatrist afterward told us the immune system along with the Brain (limbic, etc) & Central nerveous system, etc is all dysregulated with a "post-viral syndrome" (his diagnosis of her)and tests just don't reveal it. I agree! Based on British sites and other articles I've read, M.E. or CFS is like that, without physical test findings, and I read that irritable bowel,nausea, visual and other sensory disturbance goes along with it. That's my daughter's form of CFS!!! Therefore, can we conclude that CFIDS and CFS are two separate but similar conditions, with CFS being more brain & CNS based and CFIDS being more immune based?