question: Last night I fainted and apparently fell strait as a board and hit the back of my head pretty hard on some concrete. I have a little trouble remebering what happened within 5 minutes before fainting. I woke up shortly after and felt fine for the most part. Today I woke up with a headache and somewhat of a pain behind my eyes and have almost no appetite. im guessing I could have a concussion but I m more worried as to what could of caused the fainting? I had my heart checked by a cardiologist just a few months ago from a sports related colapse but they assured me everything was ok. I am just wondering if this is something I should worry about and go strait to the hospital or is it more of a concussion-like injury and needs to just be waited out a week or two?