Whine of the Week

We are just about ready to begin hard core practice. The team actually meets this Sunday for a Swim-Bike-Run fest.
Now both of my shoulders are killing me. I cannot tell if it is related to one of the medicines I take or if it a set of simultaneous injuries. Not sure where I could have injured myself except for lifting my son on and off the ski lift.
Now I will have to decide how much to work through the discomfort. It's kind of like that in life, "When has the pain passed the point of being acceptable"? I suspect the pain is passed acceptable when it no longer will lead you to your goal. Great Philosophically but I am not sure that helps me in the swim Sunday.