Concussion while drunk?

I had about 8 beers in an hour, extreme light weight, i blacked out and fell down the stairs and hit the left side top of my head on the wall and broke the wall. i was knocked out for around 2 hours, i was moving but just not awake. I would say i was unconcious for approx. 7 minutes. i woke up the next morning with extreme migrane and i was very dizzy all day and was barely able to drive. Am i okay? this happend 4 days ago and ive been having nightmares and been very tired, also pain in my head every once in awhile. I also take 36mg of concerta. Just an fyi. Thanks for your help.