The right answer is "anorexia nervosa". Anorexia nervosa is an eating disorder that is related to neurotic disorder and anxiety disorder. The patient who suffers presents an obsession to lose weight and what he ingests. It includes provoked vomiting, extreme exercise, extreme thinness, and obsessive thoughts about your weight. It occurs mostly in young women and the person can lose their life due to lack of food.
I hope my answer can help you.