I'm keeping my fingers crossed for "lazy", personally. You've had enough of the sick and no one likes to be depressed.
Well, it looks like you have been busy...But also, I know that this week has been particularly cloudy out there -- maybe you need more sunshine?
I'd say since you are a shift worker and your 12 hours of sleep was probably interrupted many times, I'd say you are tired. Lack of sleep can put anyone in a foul mood.
Crap monkies say "what?"