text: i get dizzy and my eyes can't focus in places where a lot of things (library or walmart)turns into headache its like my eyes get really confused, and i can't focus, and i can barely walk because theres so much stuff around me.  i especially have trouble in barnes and noble.   btw...i have benign positional vertigo, where the crystals in my ears get out of place and i experience vertigo and nystagmus, but i don't think this is related.   please help.... also, i get headaches when i'm in the sun...even when i just see sunlight for a few minutes. you do however, have an inflammatory process which is involving the cranial nerves..you have just mentioned 2 of them and more than one classifies it as a migraine syndrome. but, i am sure you will recognize these symptoms also.....ringing in the ears, balance distress, sensitivity to light, facial tenderness around the eyes and on the cheeks.. can go on with more but, you will notice there is considerable tenderness at the base of the skull on one side.  benign positional vertigo is a diagnosis of the symptom but not what is causing it..besides you have more problems than the vertigo. would make a pretty complicated diagnosis if all the symptoms were included in that diagnosis, as is the vertigo.  if you would like more input, contact me.