an unhealthy because you are not eating correctly
eating disorder
an emotional disorder, especially affecting young women, in which there is an abnormal fear of being fat, causing the person to stop eating, leading to dangerous weight loss
Anorexia
very thin, especially in a way that you find unpleasant or ugly
Skinny
the quality or fact of being very fat, in a way that is not healthy
obesity
eating large quantities of food and then trying to compensate by vomiting or exercising
Bulimia
a feeling that you are less valuable than other people
insecure