about 8 days ago a guy hit my head against a wall (only once). I had not such a big pain immediatly after did not bleed and did not call police or doctor. Day after I felt only very small pain. The day after that abit more but still small pain. Yesterday I thought it was almost over as hours of no pain at all but today it's back!! What now? I do not vomit and hav no concentration troubles or so. Just headache, mainly on the pla ce of impact (back, high on the head). Someone idea what to do? Will this ever end?