I have Sickle Cell Anemia and I've been experiencing alot of pain in my foot and knees, I had surgery in April of this year and(I had a fistula placed in, for exchanged transfusions) a few days after I was sent home with no physical theraphy. My leg was swollen for 5 months and I walked on it because I had no choice but to do for myself. I have an avascular nicrosis in my right hip but what could the pain in my knee and foot be?? I've tried every med and creams but nothing seems to be helping, Please help!?