I got hit in the head 3-4 times about two weeks ago. One of the hits was directly on the back of the head, where I felt dizzy and disoriented instantly. But recovered to defend myself. For the rest of the day, I had a pounding headache, the worst one I have ever had in my life and was throwing up anytime I moved. I couldn t eat for two days. I was nauseous and vomiting. I feel semi-better. I still have a gnawing headache on the left side of my head and my neck aches. I have been sleeping more than ever since the incident. And seems to be impossible and painful to stay awake. It was 9 or 10 last night and I could not keep my eye lids open. I don t know what is wrong. It s been a while since the incident and I don t want to keep complaining, but I m afraid it is all in my head if I go see a doctor.