I do know what it is lie being out of commission, mine I have to say was where you are spending most of your time now. That little bone at the end of your spine--the tail bone. I injured on a all night bus trip and the only seat left for me was over the back wheel/ the seats were not the best and neither was the road. It took over 112 month to heal, so now if I have to go any where on a bus I make sure I am in first and pick the best seat for my you know what. My wishes for your quick recovery go out to you too.hhhhhhhhhhuuuuuuuuuuugggggggggggggsssssssss