Robin........I banged my left leg when I fell (chair tipped over), was so scared I had perhaps also broken a hip. Nope, all was well, tho knee hurt a bit, was fine after 3 days. 2 days later the INSIDE of the leg began to hurt, behind the knee, on top a bit, but to the inside as well. Back of knee stopped hurting, but that inside of leg (a bit lower than knee) is just giving me a really bad time. After 2 weeks, went to dr. (mine on vacation), was given 7 Prednisone pills, (last one tomorrow). Still taking Tylenol and using aspercreme, with it.) however the pain stays away longer, tho has not vanished at all. Seems I have osteoarthritis in the knee, I have used cane a lot......and kept appt. with MY doc for lst day he will be back, a week from now. This isn't what is going on with you, but just mentioning that knees seem to not want to respond as we think they should. By the way, overheard a customer at WalMart talking to her friend, an employee, how she finally, at last, is pain free, no cane, no pain, any more, how long it took. As I walked by, told her I was hoping that I would be able to be saying the same sooner than later. LOL Good luck, my friend. It is not easy, for sure.