I really feel for you, and it sounds like you are in a very difficult situation indeed and the people around you really don't understand. Do you see a therapist and are you on meds? The meds of course can have an effect on your appetite/weight.....but really it sounds like the bingeing is very much to do with your emotions.
If your Dr doesn't take you seriously, why not change and see someone else? It's important you feel listened to and eating disorders of any kind, including Binge Eating Disorder which is a recognised condition can be addressed if you find the right support.
I have periods of binge eating too, but when i'm depressed i go the other way and lose my appetite like i have at the moment and i'm terrified of it returning cos i know i'll end up bingeing again. It's that feeling of having no control, it's just awful.
It's great that you've managed not to cut yourself, that too is something i used to do, and the more out of control you feel your life and food is the more you think about cutting, but at the same time you know that it won't help you to feel better, it won't curb your appetite and it's just a very temporary relief.....so well done for resisting the urge.
I hope you manage to find some help for yourself, it is out there, but you're gonna have to ask for it. You deserve to feel better about yourself and eating is not the answer.....although sadly that isn't enough to stop the habit.
I wish you every luck...keep in touch.