For the past two weeks I've been having headaches, scattered throughout the day. I usually feel great in the morning for about two hours, however. I also feel very tired and sleepy during the middle of the day. My legs, arms, and eyes occasionally twitch and jerk slightly. My head also seems to move a little bit. I don't have any dizziness or trouble walking or doing anything, and the symptoms seem to go away when I'm busy. Now also about two weeks ago, I hit my head of a metal beam and it was bleeding for about twenty minutes. I want to know if these symptoms are from a brain tumor or did I possible do something to my head, or is it something completely different?