How to widen your stance

[DaveASA/FED]

Ok everyone tells everybody I have seen work they need to widen their stance, myself included. So I have a question, maybe I am the only one with this issue, maybe some of you have overcome it. If you have that is why I am asking.

When I get real wide I feel off balance, and I have pain in groin area almost like I am stretching my muscles farther than they can go when I try to squat. This makes me bring my legs back together slightly as I squat to position. I know I am doing something wrong I have seen others get wider than I can without any issue, so I ask you all what am I doing wrong?