I'd be a troll in Discworld because I function decidedly better in cooler weather; I can think better and do stuff. It's a bit sad if a productive day is a cause to celebrate, but heck, it's better than so many things.
I even have a different pattern of insomnia now; I wake up a couple of times a night, but after a short while of reading or even screening, I fall back asleep. I'm reading more printed books, and can manage some winter evening projects, like knitting or needlepoint.
One major reason for my mood upbeating, (didn't want to say "upbeat mood", which limits the upbeatness to here and now?) is because Ben's return to garden work. We used to work outside together. Then he didn't. Then I started on my own, only in the cool seasons. Then I didn't. But it is so much faster, Ben can tackle bigger/heavier/deeper things, and we discuss the garden beyond him speaking theoretically and my disagreeing from experience or due to practicality. And if a cute, mideum-sized skip is all it takes, I'm happy to invest in hiring it several times a year; it's equivalent to my selling one large piece!
In fact, all the work we put in over Easter lifted the myriad of diabetes/depression-related clouds we've had since our first encounter, which started on Feb 5 but now I can't remember if it was in '02 or '03. I feel I have some control over portions of our lives. Good, eh.
Sorry for the almost-rainy-day pics; now that I've typed the text, the sun's been out and gone again.