I collapsed and to be honest don't know what happened...Anyone have any advice?

ohkay lady, i dunno much about medicine and all that jazz, but im uming you messed up your pillbox or something. maybe one pill counteracted another? but damn, you have serious health issues. call a doctor. please. by the by, imma science/physics geek. yeah, size has to do with it. also where you where, how you were positioned, the speed you fell at, the time it took you to hit the floor, as well as everything around you. mes/volume/height/width/length etc. etc. there is NO way you couldve gotten hurt that bad from falling a few times. im uming you fell asleep after feeling dizzy, sleepwalked, and hurt yourself. that could explain memory loss, bruises and whatever else. sleepwalking is serious, if youre not careful you could get injured as severe as you did this time. WHY DONT YOU TAKE A PILL FOR THAT TOO. :)