When I wandering in sunlight for a lot of time like 6 to 8 hours my left side of brain having a too munch pain which is intolerable. My pain formed at the middle of ear and eye of my left side of head. Some time tear comes out from left eye when my pain become to high. This problem facing from my child hood but at then I does not face a lot of inconvenience. After night in morning it becomes normal again. I will be very obliged if you share your valuable suggestions to recover it as soon as possible.