There was a time when I had no sympathy (tolerance) for people that used their "moods" to avoid things like work, confrontation, or me. We've all heard someone say, "Not now, I'm not in the mood."
I felt you should have control over something as emotionally based as moods. As I move along this road I am forced to travel, my perspective has changed.
My "moods" are taking on an increasingly physical nature. I'm not sure whether my bad days (physically) cause me to be depressed or the other way around. I just know they show up hand in hand, smiling with an evil grin, saying, "We are going to humble you today."