Getting comfortable being uncomfortable is one of the reasons I lift. Stepping out under 290# for the first time at 178 for a squat, well, that sucks. Dropping into the hole with no idea if you can get out of it sucks. Being gassed after a ten rep deadlift sucks.
After those things, that you chose to do, at whatever level, the little shit doesn’t really matter.
I dislocated my shoulder skiing one time. My brother was with me, an ER doc. He had our friend sit on my chest while he relocated it on the slope. I asked if it was going to hurt, dumbest question ever.
We called him doctor warmth, because he was honest AF.
ME: Is it going to hurt?
HIM: Yeah, it’s going to hurt like shit.
Pop, back in.
I wasn’t going down in a gurney, so I skied down to the closest lift, took it up, then skied down to the lodge.
He was blown away. I can only say that lifting prepared me to be in pain, and I really don’t push myself that hard, so yeah. Lifting helps with pain tolerance.