question: Yesterday afternoon I hit the side of my forehead on a very sharp corner of a desk. I blacked out for a few seconds and was extremely dizy and lightheaded for about a minute. The area is bruised today, but visually it does not look that bad. But my vision is blurry and I have a bad headache. I'm not sure if it requires any medical attention... I don't want to over react. Again it's barely noticeable from looking at my scalp, but I can feel the pain internally.