When I was about 11 or 12 my siter jokingly and quietly and unknowingly to me, pulled the chair that I was sitting on.  I slumped right back into the edge of the partion in my mum's kitchen. Recived such a stinking impact right in crack of my buttoks and excruciating pain radiated all the way up my tailbone.  There was  a scar at the end of the tailbone and to this day I fell dizzy when I climb as hight as 3 sotreys in  abuilding and also my brain seems to focus on many different things at one time. Could I have damaged nerves on my tailbone. Often it takes 3 days before the message hits. Then I become aware that I had thought of the thing days before. What could be going on?