question: I have pain in my left knee, behind my knee and in my calf. I have slight swelling in my knee and considerable swelling in my calf and leg down to my ankle. My left calf is almost 2 thicker than the right, which is usually larger than my left. I have tightness/stiffness when I bend my knee along with pain. I have had knee pain previously and X-rays show some slight arthritis. The leg pain and swelling has been going on for about a week. I ve been elevating, icing and taking anti-inflamotories but am not seeing any improvement.