I wonder

I wonder if I have S.A.D. Although times were really rough for me as we entered Winter, I stayed depressed throughout. And although things have gotten a bit better now, the weather is getting warmer and sunnier. I find I can't help but being cheerful when it's sunny, no matter how much I might want to otherwise. Not that I want to be sad, but sometimes you can make yourself feel a certain way - willpower. Seriously, I wonder.