something wrong since 2007 I entered senior high school and everytime in the class I always feel sleepy. Every medical check up I've been passed but nothing changed I keep feel sleepy anywhere, any time, even in big music concert I'll feel sleepy and then fall to sleep. Yesterday was the worst, when I drove my bike in the dark of the night, when i entered a quiet narrow street, it happened again and I fell off from my bike. I couln't stand up   and suddenly some of man appeared before my eyes and they help me stand up and pull my bike from a ditch. This is the only story i can tell now