I got in a bike wreck today and my wrist feels out of purporiton, what could be wrong?

I was riding down the hill at high speeds and I was turning into my neighbors driveway, and I hit the bump on the side and flipped (later my best friend and I measured, I flew 13 feet..) and landed in a rock patch. Anyways, my legs are really bruised and I landed on my wrist (and on my stomach, I felt like I got punched) and it's been acting weird. I can bend it okay but it hurts if I put alot of weight on it, I'm wearing a wrist brace right now and that seems to help.