Good afternoon Dr. I fell from a chair last Saturday (26 January 2013). My upper head was bumped into a wooden cabinet, my back hit the cement and a my butt in a pipe. I hit them so hard since I have a huge body built. my question is why until now i ve been experiencing headache on the bump part? is there something to be alarmed of? By the way, i m still conscious after bumping my head, only i felt little dizzy and was in shock for a one minute, i guess.