OMG...I might have this...WTF...
SAD: Condition in which people experience episodes of depressionthat typically begin each fall or winter and lift in the spring.
some major points:
* much more common in Canada, where it affects nearly 10 percent of people
* caused by lack of sufficient light For example, people living at higher latitudes, where winter days are dark and short, have higher rates of the disorder
read more here: http://www.cmha.ca/bins/content_page.asp?cid=3-86-93
So I guess I need a vacay to cure my "winter blues"... it's just what the doctor ordered.