Overeating has only recently been recognized as an eating disorder. There isn't a lot of information about it available and very little support for this side of the eating disorder spectrum. There are some individual therapists out there who understand overeating and this type of addiction, but the available resources are sorely lacking.
The best resource I've seen is Overeaters Anonymous. There are meetings on-line, in person and by phone. If you haven't attended a meeting you might look into one. On-line meetings are basically chat rooms, All you have to do is show up when it's meeting time and read/listen or you can participate if you wish.
For a list of all the meetings around the world visit
www.oa.org