I have been having knee pain on my left leg off and on for about three months. I visited my family doctor, and I was told it was inflammation. I was prescribed naproxen. I took it for two weeks. The pain still comes and goes, but my calve is also sour. I feel the pain when I get up after sitting and sometimes when I'm lying down. Once I start walking my pain diminishes. It hurts more when I get up. My doctor told me if after two weeks I still have pain, I would have to come in to get a cortizone shot. I don't want one. I don't think that will cure the problem. Why does my knee and calf hurt?