Hi, Maly! I totally can relate. Have you read anything by Geneen Roth? She's fabulous, and believes in not dieting. I think her theories might mesh well with OA. She writes very humorously and is easy to read, but her books have serious kernels of truth.
I'm with you on the depression. You know, eating many foods can help raise your levels of seratonin and such and thus reduce your depression. Therefore, if you get your depression under control with meds or therapy, you may have less of a desire to binge.
I know I've found that to be the case.