I slammed my the back of my head on the corner of a tv yesterday at 1030pm, I have some symptoms of a concussion, but when I lay down for bed... I get a pressure all in my head... And I m scared to try and fall asleep. No vomiting, no memory loss, no blurred Vision or anything. It s been 30 Hours since, if I were to have any bleeding in the brain.... Am I in the clear?