Best of luck. If you really didn't have a diagnosis after 3 visits, you probably should see another doctor. I'm just curious, what you mean by metabolic problems?
I don't want to go into my medical history here... but I'm sensitive to several common proteins and compounds. Chronically low on B*, D and Calcium. Doctors think I'm nuts. It runs in the family-- my mother and grandmother have the same problem. B vitamins seem to modulate one of the problems and not another. :)