So here is a totally unscientific livejournal poll on the topic. I wish it was possible to write livejournal polls that link together the answers from multiple questions and correlate the answers automatically. Oh well. Question 2 is deliberately vague because I set about writing time intervals like "2-3 days ago" and "4-7 days ago" before realising that I couldn't remember the answer to it that precisely myself, so it was probably pointless expecting anyone else to.
Are you depressed at the moment?
If you said you feel horrible, miserable or depressed, do you have a medically-recognised depressive disorder?
How long ago did you last have a sunny day?
Oh yes, and if you do happen to feel just great at the moment, then please comment below to say why, because the rest of us need cheering up.