I am trying to find a specialist for my 10 yr old son, who has been experiencing lightheadedness & some nausea since mid Sept. He has has ekgs, blood work and several exams from his pediatrician, Ear nose & throat, ER doctors, and cardiac pediatrician. Diagnosis is pre syncope but he doesn't have all of the symptoms and the doctors do not have a plan for how to remedy the symptoms yet. Our own research and from the school nurse points towards Orthostatic Intolerance (an Autoimmnune disorder). Finding a pediatrician in Michigan for this has not been easy.