is an eating disorder
characterized by restraining of food intake for a period of time followed by an over intake or binging period that results in feelings of guilt and low self-esteem.
The most common form is defensive vomiting, sometimes called purging; fasting, the use of laxatives, enemas, diuretics, and over exercising are also common
Bulimics are much more likely to have an affective disorder, such as depression
or general anxiety disorder...
so you have been adviced to meet a psychiatrist
who will be needed to confirm diagnosis and for further councelling