Anorexia Nervousa

Anorexia Nervousa is a mental disorder where the person that has it feels like they are too fat despite being normal/underweight.

Overview
A person with anorexia nervousa will often obsess over losing as much weight as possible. There are 2 flavors of Anorexia, Purging (not to be confused with Bulimia, which is a very similar disorder often paired up with Anorexia.) and starving. Purging is very similar to Bulimia, however, the person doesn't binge eat before purging. Starving is eating very little to no food to lose weight.