I feel you there.

I've struggled with binge eating for the last 7 years. Somehow I've only put on several lbs. in that time, even with all the medications and hundreds of thousands of calories I've consumed.

I still feel disgusting though, and I avoid socializing due to it.

As far as I know, usually binge eating is emotional. It's literally like stuffing down your unwanted feelings, it also shows issues with impulse and control... especially if it just started out of the blue like that. I learned this from my psychologist.

So I'd recommend talking to someone. It takes a while to help, but it does help after awhile.