Quick background - I'm doing 5/3/1 and am now in my 6th cycle.
For the first four cycles, I was squatting kind of moderate-wide (each foot probably 6-8" outside of shoulder width. I haven't actually measured). As I went into cycle 5, I narrowed my stance to just outside shoulder width. I did this because it seems as though a lot of raw squatters use a narrow stance (to protect their hips?) The first week, I went down into a squat and felt a pain on the right side where my hip meets my lower back.
When I stood up after, I could tell the pain was originating in the front of my hip and not my back. I got in there with a hard ball and after a couple of days of some serious myo release, I got rid of the pain. The problem is that since then, this is happening every time I squat and the pain is also messing up my deadlift days. I haven't had a truely good leg day in over a month. I just took two weeks off, foam rolled and stretched a lot, went in yestday and it happened again!
Any idea why I'd be messing up a muscle at the front of my hip when squating?
Should I just widen my stance again? I don't think I was going super wide and I definitely felt tighter when I was squatting wide.