Does this ever happen to anyone? I went out for a 4.5 mile run which I intended to complete in 40 minutes... nice easy pace. So I set out and by the end of the second mile I am dying and getting stitch after stitch and am just about ready to give up but pushed myself through the run anyway. It should have been an easy run I have done this route a bunch of times before but for some reason today sucked... Anyone else get that? J.