I dont think my symptoms are directly from injury but I was knocked down by a car when I was 12, but I was a competitive swimmer and put a lot down to that. Over training, weight lifting etc. But I'm more inclined to think my problems sciatica, degenerative back problems, arthritis in my back, knees, and shoulder and torticolis are more inherited from my dad I first started having problems with my knees at the age of 13/14 and I am 38 now, so i have suffered one way or another for more than half my life.