I've been running a few miles every morning for about a month now, and my knees are still hurting as bad as they did when I first started. Actually it's the back of the knee where I really notice the pull. (knee pitt). I know that walking is supposed to be better for knees, but I really am hooked on running. Does anyone know if there are any type of stretches or exercises I could do to strengthen my knees? Please help