Nesting

Unlike other animals, I experience the "urge to nest" in the fall, not in the spring. Whereas the average creature is exhilarated by the first signs of more light and warmth, I seem to get my motivation from the darkness and grayness. When the normal Finn wants to move to the countryside in the spring, I tend to dream about that when the winter starts to creep in. At this time of the year, I also find our fridge filled with food (me, cooking!)... So weird. I have no idea what's turned my biology upside down :) Any suggestions?