Do you repeatedly find yourself binge eating?  For the diagnosis of bulimia, "binge eating" means (1) eating more food than what most people would eat in a limited period of time and (2) feeling like you lack of control over your eating during that period.   For example, people sometimes talk about going on a binge in the evening in which they eat lots of easy-to-prepare food, junk food, carbohydrates, or sugar.  The binge might last for an hour or two, and feel out of control or like they can't stop eating.  The amount they eat during that period is more than what most people would eat during a time period of that length. 

In order to compensate for the binges, do you make intense efforts to lose weight?  Some things people try include self-induced vomiting, misuse of laxatives, misuse of diuretics, fasting, or excessive exercise. 

If you do this binge and purge cycle, does it happen at least twice a week (on average)?

Do you find that how you feel about yourself is unduly influenced by your body shape and weight?