Proud of you! You have to give the GP some credit, as mentioned above. This sort of thing is pretty specialized, and they really need to make sure no one self-diagnoses. While I'm sorry you didn't get the help you were looking for, keep in mind that you're doing very well, and that the GP just isn't the doctor for this. And eating is ok, just make sure you eat healthily if you can. My suggestion is to eat often and eat small.

Good luck! I like seeing that counter so high. =)