He has always been moody but now he is working a stressful job at odd hours and things are worse. He seems to fly off the handle at little things, spending lots of money, talking about new (crazy) business opps, increased use of alcohol and drugs, and high sex drive. He also is a bit obbsessive. Things are had to be done just right (ie: loading a dishwasher, putting stuff away)
It seems he doesn't have "highs" just "low" or "normal" moods. He also doesn't seem sad (depressed) but more angry.