Throughly concussed!

So, last night I went out with a bunch of my friends, Should have been fun right? Well here is the story we were all just standing around talking trying to pick a game when one of my friends dropped their water bottle (hard plastic reusable type with water in it) on my head. I became very um... couldn't walk or think or anything like that for like an hour then after that I felt fine so I came home and then went to bed, Well this morning when I got to work I became 100% worse I became very much massive headache and everyone was saying I was concussed! It really sucked and it still hurts! So yeah once again being short strikes with a vengeance!