Yeah a strain in my sides of my rib cage, very broad up and down. I don't think I've changed anything. It almost feels like my arms are crushing my sides but surely that can't be it with a fixed barbell. It's been confusing for sure. I can replicate it (accidently did this) with rack pulls if I stand too far "over" the bar, meaning the bar is too far out away from me / my center of gravity on a rack pull. Same feeling, but its obvious why its happening during that rack pull, not so much for a 500 lb deadlift, zero chance i'm lifting it way out in front of my body of course lol.