Hello, I have an older brother who has been having some rather strange symptoms for about 8 years now that have yet to be diagnosed. Symptoms include excessive sweating the hair on his arms stands straight up like he s standing outside in a blizzard, slight dizziness, sensitivity to loud sounds, and a sort of recurring video playback that replays in his head of events that happened the very day this all started, which was about 8 years ago. Any ideas?