I hit my head 3 days ago (Sunday) on the side panel of the doorway. I didn't hit it that hard, I literally just turned and leaned over too far while talking with someone, and hit my head on the right middle side. I have had slight pain ever since, an annoying slight tension headache, and nausea. The nausea has gotten much worse today, I almost threw up, and the headache is more annoying. I am thinking I am so nauseous from the weird headache. I don't know if I need to go to a doctor or not?!?! It has been over 48 hours, and they say that after a head injury if it has been that long, than you are fine if nothing serious is going on. I am able to hold a conversation and not blacking out or anything, so I don't want to waste money at the doctor if it is not needed. Thank you for your input!!!!