i hit my head (temple) earlier today (4:20pm) with a metal piece on a pool buoy, and only now do i have a headache (9:00pm), i do get headaches often but i was wondering if it might be because of the metal piece as the pain is concentrated in that area. I am 17, 5feet 7inches, 130lbs, and have never hit my head before. also i took some Advil