mild, intermittent, depressive symptoms, anxiety, fatigue, insomnia, and loss of appetite.  A few years later, he experienced 25 consecutive days...

 mild, intermittent, depressive symptoms, anxiety, fatigue, insomnia, and loss of appetite.  A few years later, he experienced 25 consecutive days of remarkable energy, hyperactivity, and euphoria followed by 5 days of depression during which he slept a lot and felt that he could hardly move