I agree with Zuleika. Extreme diets and bulemia will totally throw your body off. Our bodies will do whatever it takes to try to survive including living on a minuscule amount of calories. You are going to have to be patient to give your body a chance to reprogram itself. You are going to have to get your body out of starvation mode. I know that's scary because it requires that you eat more calories than you normally do. Try rotating between eating more on one day and less on others.