Bulimia and binge eating disorder aren't the same, although they share some symptoms. People with bulimia also regularly overeat, and they may feel the same negative emotions, such as a loss of control, shame, or guilt. The key difference is that people with bulimia "purge" afterward. They might make themselves vomit, use laxatives or diuretics, or exercise too much. Purging is not part of binge eating disorder.