Sweetbread

A patient comes to your office complaining of longstanding depressed mood for at least several years. He feels "depressed" on "many days," and this is accompanied by poor appetite, poor sleep habits, low energy, poor self esteem, and poor concentration. However, he does not feel this way for "most of the day nearly every day for two consecutive weeks." Instead, it appears to be more of a chronic feeling rather than an episodic one. He does not have psychomotor agitation or retardation, thoughts of guilt or worthlessness, thoughts of suicide, or symptoms of mania.

Challenge: What do we call this?