No, no prozac! no way! its never ever good. Try flower essences! go to the flower essence forum to see which one. agrimony may be good for you.
I have been there too. I have done that before. Its emotional. What has happened in your childhood that you are supressing? where is the sadness in your life? where is the pain and hurt? even if you have emotional problems in the present, the ones of the past--if unresolved--lead you to similiar situations again, and again, so that you can finally deal with them. Don't let anyone step on you, put you down, or abuse you. Stand up and love yourself first.
Its easier said than done. Many things will help you. Ultimately saying what you feel, acknowledging the hurt, and confronting the pain will end all the bulimia. Its not about food! i thought it was too--i thought i just liked to eat too much. but its your inner child that needs nourishment.
sorry if this sounds weird or far out. If you have any questions I will be more than happy to explain more.