damn..sorry to hear but it could have been a lot worse. First thing I would do is get a new helmet. If you do end of boarding in Utah, you really need to take it easy and just cruise. You fall and hit your head again it could be bad. I got my first concussion in mid December. Like you, I have no memory of anything for a 5 hour period and my friends told me that I kept asking the same 3 questions every 15 mins.