A 40 year old woman presents to the GP with low mood. Of note, she has an increased appetite and has gone up 2 dress sizes. She also complains that she can’t get out of bed until the afternoon. What is the most likely diagnosis?

The key is E. Atypical depression. [Atypical depression is a subtype of major depression or

dysthymic disorder that involves several specific symptoms, including increased appetite or weight gain,

sleepiness or excessive sleep, marked fatigue or weakness, moods that are strongly reactive to

environmental circumstances, and feeling extremely sensitive to rejection].