Runners, has anyone else had this problem?
I have been running since March. I've done three 5k's, a 10k and one shorter race so far. My average weekly mileage was 15-20 miles until a few weeks ago. In one day, it became painful for me to sit, my left leg had muscle twitching, and I could not raise my leg. The pain was mostly in my left hip and buttock. It has never…
