A 20-year-old man presents with an excessive fear of gaining weight. He strictly controls his calorie intake and exercises intensely. Despite being underweight, he still perceives himself as overweight. What could be the potential diagnosis?
This patient's intense fear of gaining weight, strict control of diet, excessive exercise, and distorted body image, despite being underweight, are suggestive of Anorexia Nervosa. While this is typically classified as an eating disorder, it is also characterized by severe anxiety about body weight and shape.