What are common symptom of bulimia nervosa?

Binge/purge: Recurrent episodes of binge eating accompanied by a sense of lack of control over eating during each episode and inappropriate behavior to prevent weight gain, such as self-induced vomiting, misuse of laxatives, diuretics, enemas, or other medications, fasting, or excessive exercise.

Binge/purge: Bulimia is binge eating accompanied by purging (attempting to rid oneself of the food). Purging can take the form of vomiting, misuse of laxatives or stimulants, excessive exercise, etc. 90%+ of bulimics are female, and the disorder runs in families. Many medical problems can result from this unhealthy behavior. Treatment consists of psychotherapy and sometimes psychiatric medication.