Seasonal Affective Disorder. I've never been clinically diagnosed with this disorder but I am certain I suffer from it. Every year from the end of September until mid November-I am lethargic, depressed, tired, with a down-in-the-dumps attitude. I hate that it gets dark at 5pm. I don't feel like socializing or get motivated to do anything worthwhile when it gets dark just as my day gets going. This year it hasn't been as severe I think because I've been working out a lot. I just want the sun to not be so far away.