I've been tracking an interesting peculiarity about myself for the last several years -- my creativity is tied to the cycle of the seasons. All Winter my brain feels like it's full of cotton. The words are there, but they're muffled, distant, not within my grasp. And my yearning to write is diminished as well. I'm easily distracted, irritated with the entire process, and too easily discouraged.
Now that the warmth is returning, the flowers are starting to grow, and the snow is gone I'm getting back into the swing of things. I *want* to write. I have ideas bubbling up through the mud and demanding my attention. I can concentrate again.
I wonder if my Muse is affected by SAD... It's definitely something I should look into for next Winter.