Background: Patients with eating disorders have reported poorer emotional awareness, more emotional suppression, less use of adaptive emotional regulation strategies, and more use of maladaptive emotional regulation strategies compared to people in healthy control groups. Aim: To explore experiences of emotions by a sample of patients with eating disorders. Method: Nine patients with eating disorder diagnoses at an eating disorder outpatient clinic in Sweden were interviewed for their thoughts on emotions. The interviews were analyzed with Thematic Analysis. Result: Four themes were constructed: "Not knowing what one feels", "Switch off, run away, or hide behind a mask", "Emotions in a lifelong perspective", and "Using eating behaviors to regulate emotions". The patients described uncertainty regarding whether they experienced emotions correctly. They described how they tried to avoid difficult emotions through suppressive strategies and eating disorder behavior. All described strategies were inefficient and all emotions were experienced as problematic, even joy. Since joy was used as a mask, the real experience of happiness was lost and mourned.Conclusion: All kinds of emotions were considered problematic to experience, but shame, fear, and sadness were considered worst. It is difficult to know if the emotional difficulties preceded an eating disorder, but at least those problems seem to have increased by the eating disorder.