Originally Posted by VLSI
Left side, bottom near the outside, not "deep" though closer towards surface. Feels like a muscle, dull I guess, but it definitely hurts. No pain normally, but once I load up squats near my working weight, I can't hit proper depth without pain. Someone else suggested piriformis too. It's been bothering me for a little over a week now.
Be careful. I had similar symptoms and kept adding weight, then felt something pop on my last set coming out of the hole. Nearly blacked out in the gym, staggered home, and took a long time to recover - I just reached the same weight on the squat I was at and this was July.
My suggestions - try foam rolling after your workout with stretches (pigeon pose is good, as are the yoga warrior poses), and make sure your form is good because it's really easy to disproportionately load your lower back. I do low bar and was having pain again two weeks ago; I took a week off and then had someone check my form. If I make sure my feet are angled out ~30 degrees and my chest is up, it seems to feel okay.