I am experiencing knee pain in one leg. I was a light runner for 25 years. Stopped running due to sharp pain on the inside below my knee. Started walking instead. Now 5 years later knee pain again. Went to an Ortho for exam and xrays. Nothing showed. The Dr wanted to do a MRI but my schedule did not allow at the time. Now 2 months later the pain begins if I walk a few blocks. The pain seems to be all around the joint and builds the longer I walk. Yesterday after a short walk the pain was enough to make me sit down. I notice a swelling or bump on the lower outside of the joint that was sore when i pressed on it. The swelling went away in less than an hour and the pain subsides also. I have tried knee supports and massage and stretching. The stretching seems to make it worse. I will be going home in a few weeks and if all this is still a problem then I will return to the Ortho for a scan or whatever. I wonder what I can or should be doing in the mean time.