It must be contagious-
I've been stuck in the house by the weather, and I've been fairly broke-ish for the last couple weeks, which has amplified my cabin fever, which is in turn reinforced by the short days and gray skies, which has caused me to write less. And the writing less has made me feel non-productive, which makes me feel more depressed. Which has in turn... Well, you see where this is going: Lather, Rinse, Repeat.
I've been staring at blank pages for the past few weeks and...nothing. Not being able to write is maddening.