i dont know about this. i cant get on the treadmill/elliptical unless there is some soccer match or action film streaming on the tv.... I could focus on the pain of doing exercise but that seems to be counter productive...
Actually, next time, why not try focusing on the pain? I do this sometimes when I run. Instead of trying to ignore the pain, really focus on it, and sense what it is about it that’s discomforting, and when you realize that it’s not going to harm you in any significant way, it kind of loses its power over you and you sort of accept it and keep going.