Made it to the forums, so here's some more info:
I've done some casual weightlifting over the years, but never any serious training. I've just recently started doing low bar squats so I am still trying to figure out bar/grip/back/hip/knee position. Obviously I struggle getting to depth, but I am working on that. Is the bar at the right spot on my back? Are my hands narrow enough? I find if I go any narrower, I can't keep my hands on the bar (you can see some bend in my wrist as I struggle to keep my hands on the bar as is). I also notice my ankles rolling in slightly at the bottom. Is my back angle ok?
I recently had a back injury, which I wasn't sure if that was related to weightlifting or excitable nieces/nephews or just sleeping funny. I noticed it in my lower back in the spine and the right side. I could feel it most when sitting for extended periods of time or at the bottom of a squat (even a bodyweight squat). Took a week or so off of squatting/deadlifting and it seems to be recovering nicely. I think I'm going to work my way up from 135 again, videoing myself every session to make sure I go deep enough.