Anorexia Nervosa

The opposite of bulimia is anorexia nervosa, see Instead of overeating, sufferers from anorexia nervosa don't eat at all and losing weight no matter what becomes their one focus in life. Nothing else matters and they are usually very good at hiding their condition in public in such ways as wearing bulky clothes and pretend to eat when people are watching. However when alone they look at their bodies, already malnutrition and underweight but see nothing but an fat overweight person who needs to lose more weight. People with eating disorders are commonly so disgusted with their own self-image that they punish themselves by either not eating or by overeating until they feel sick.