Maybe it's depression coming back; I have been thinking the same thing about myself; I'm off of all medication since April 22 of this year. I didn't have any trouble with discontinuation syndrome. Now I'm sleeping, but not feeling rested, losing my appetite, and just feeling plain old "blah"...As GenCat has noted, depression does hit me more in the cold and dark months. I did have a rough go of it with buproprion xl. I was on 150 for about a month. But with that, like everything else, I was a side-effects machine...