From Monday 05/14/12, My 13 year old daughters has been having bad headaches, nausea, dizziness and often phases out (not pay attention). No diarrhea , fever, vomiting or other symptoms. Her Pediatrician didnt know what the cause was and when I asked her to have a UA and Labs done, she stated NO sence because I wouldnt know what to look for ?! I didnt feel comfortable with that answer! What do you think this could be?? Should I take her to a specialist.. neurologist maybe??