Sorry that you're going through this.
Do you want to say if there are any treatment methods that you've tried so far, and what the outcome was?
The perspective of traditional Chinese medicine about bulimia is that there is a large emotional component to it, but also a physical component that can be treated with medicine.
If you're interested in trying Chinese herbal medicine or acupuncture for this, I could say more about the subject.
I hope something can help.