Your helmet took a nice hit. From where the hits are you saved your eye socket, your skull (closed head injury) and didn't lose a bunch of hair/skin. That helmet needs to be a keepsake to show others it did its job! Plus 10 seconds before you went down you had NO IDEA you were going down. A complete suprise with no warning. Glad your OK. Get some extra strength Vicoden (7.5/750) from the doc. They will help you sleep.