Your squats are a little high and your stance a little wide, but you are not sliding forward at the bottom, nor are your knees coming in, nor are you falling apart in any way. Here are my suggestions, which may or may not help with your hips. Narrow your stance about an inch. Go deeper in your squats – about two inches, or so. Drop your elbows. Get some lifting shoes. See where things go. It is possible that a slightly narrower stance with better depth in the squat may help with the hip pain since your quads, esp the rectus femoris will not be the primary muscle group putting the brakes on the descent.