Hello, Princesscookie19. I do not suffer from bulimia. I do suffer from "disordered eating."
This is not an answer to your question, but it might at least be thought-provoking to investigate the endocrine/hormonal dimensions of bulimia.
Sample search in the PubMed Central Library
The material there
might indirectly suggest something to you compatible with your own experience.
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My dog
mastered the "fetch" command. He would communicate he wanted something, and I would fetch it.