i'm sorry to hear about your falls, i know they aren't fun. i am amazed at you determination.

knowing first hand of head injuries, i say go to the doctor. i waited a week after my head injury (mine was a pool accident) and i had (and still do) have complications with it.
i'm not saying yours is like mine, but its still a good idea to go to the doctor. that and to get your wrist checked out. then let us know what the doc says.