Sometimes I really feel the throw in my inner thigh, like groin muscle (place you stretch with butterfly stretch). Like almost feels like I pulled the muscle, but it doesn't hurt, just feels like it would as if I were to stretch it, and it goes away after a couple seconds. This happen to anyone else?

This happens me sometimes (RHBH) in my right leg when I am really trying to rip a long drive. I've found for myself that when that is happening, the last stride into my pivot foot is longer than usual for me.