Anorexia Nervosa (AN), Bulimia Nervosa (BN) and Binge Eating Disorder (BED) are severe psychiatric illnesses which represent the main expression of Feeding and Eating Disorders (FED). Clinicians agree that emotional and behavioural dysregulation play a crucial role in FED. Dysphoria could help us to better understand these components. Indeed, we define dysphoria as a generic state of dissatisfaction and emotional instability, without any specific features. Among the multitude of symptoms, we find that irritability, discontent, interpersonal resentment and surrender prevail. These dimensions correspond to the four subscales of Neapean Dysphoria Scale - Italian version (NDS-I). Dysphoria role in FED has not yet been investigated. Using this test, we can characterize dysphoria both in quantitative and qualitative terms. Accordingly, domain evaluation could discriminate these disorders allowing us to assess possible differential phenomenological expressions.