Squat form check please, experiencing hip flexor pain
I'm currently on SSLP, and my highest 5-rep squat is 210. I started experiencing hip pain in the front crease of my legs (based on videos on hip impingement, seems like its in my hip flexors). around 180lbs and its got gradually worse. I felt it at the bottom, and I noticed on film that my knees were caving, so I deloaded to 165, which was the highest I could go and stop my knees from caving. I've been working on that, and got the knees mostly fixed I think, but now I don't feel the pain at the bottom so much as halfway up during the ascent. when it gets hard, it feels like my hip flexors are trying to pull my hips forward and its a sharpish pain I experience.
Stats are: 38 y/o male, 177 lbs BW, 5'11". Please check my squat video and let me know if you see anything I'm doing that could cause this.
https://www.youtube.com/watch?v=csgV...ature=youtu.be
link: Squat hip pain - YouTube