The Evening Blahs

I'm writing this at around 10:30 and I feel fine. I feel like myself and things are nice. But four to five hours ago, I felt horrible. I was tired and depressed and anxious and just really blah. 

This has been happening to my roommate as well. It's an ongoing thing during the earlier hours of the evening. We feel awful. The light in the room doesn't seem like it's enough. Everything is just bad.  As the evening continues, the light levels out, things feel better, we feel more like ourselves. 

Freaky winter.