I've had what I suspected to be a "pulled muscle" for about 6 months now. It's my hamstring Im sure. It's above my knee and below my waiste, down side of my leg. I cannot kick high with my left leg, without feeling severe pain! I've tried my best with 100's of stretches, and still no luck. Then I decided to kick high anyway, and that the pain might go away, still no luck. Im very frustrated, nothing like this in my 8 yrs has happened to me. Got any advice for 2nd dan that's about to go insane?