I believe when I was a small child, that when my friend pulled me feet first off of the gymnasiam stage and falling down on the hard floor that I started this problem. Then about 11 years ago, I dropped out of the bus with a 12 pack of cans on my hip and I think I may have done more damage. Anyway, recently, I slipped and turned awkwardly and really am paying for this now. I am 60 years old and some days are just not easy to sit in an upright position...other than this dilemma, I am in pretty good health and expect to live a long time.