question: I hit my head 3 days ago by walking into a metal door frame.  It was hard and loud! My head still hurts and I just don't feel right but I also believe I'm suffering from seasonal allergies with the drip, a sore throat and full head.  Should I go get checked out? I'm a teacher and the school nurse said my pupils are reacting so that's good. But I'm very nervous that I still don't feel right.