Ok, so tonight during kickboxing sparring, I did a roundhouse kick and when it connected, there was this sudden sort of 'clicky pop' sound in my hamstring, directly under buttcheek. I didnt collapse, and Ive been able to walk around on in, raise my knee through a full range of motion and step about properly, I just cant kick. Bending down to touch my toes causes me a shooting pain, and any further kick attempts (By which I mean one) brought the pain back on. My sensei think's its a tear but Im not sure what I should do to help it tonight. It seems that the pain is only brought on either by direct pressure there from sitting or when fully extending the leg. Im going to go to the doctors tomorrow morning on an emergency appointment just to make sure its nothing serious, but in the meantime, what should I do? Run a hot bath?