Is it because they killed Vaungh on Alias? No that is Ed.
Is it becasue your hair is turning grey? No.
Well, yes, but that explains the last 5 years of cranky - not the last two weeks.
Is it because of the general plight of the world, and the ennui towards the little child, and the tear it brings to your eye - slowing inching down your face?
No. My boss went on vacation for two weeks. And, specifically against my instructions, left me in charge.
This has not made me happy.