Hi, while I was running today I got a slight numbness and weakness in my left calf. It didn t hurt to run on, but when I ran my leg was buckling a little. I tried rolling it with a foam roller until I realized it wasn t the calf muscle itself that was sore, it was a tendon or something under it, somewhere between the bone and muscle. If I hit it or massaged it I felt a sharp pain. After a few hours it no longer hurt to run or walk, but if I rub it I still feel pain. Is resting the only way to keep it from hurting?