Dizziness almost everyday lightheadedness feeling like fainting it's been 6yrs.head and neck mris, blood test, urinalysis were normal. what can it be?

EEG: Episodes of light hotheadedness are occasionally due to epilepsy and acephalgic migraine. In both cases the EEG is often abnormal (H response with photic flash and abnormal response to hyperventilation with acephalgic migraine with aura) Other reasons for "fainting" include dysautonmia due to neuropathy) No sure why an MRI was performed with your history) Did you see a neurologist? Six years ?