In sports they talk about playing through the pain. Hrm, I suppose one could talk about exercising through it as well. Not much choice unless one wants to remain sedentary (redundant?) although not clear if exercise makes it worse. I can always consider it a bit of a mental test to see if I can put things out of my mind and ignore the distractions.
As a side note, I thought Tony was going to eat the AR10. Guess that would have ended things one episode too early with too many loose ends. Quick yet messy way to go though...