I could tell when my current depressive episode started. For me, I just didn’t feel good. Like I wasn’t super sad, but just sadder than normal. It got worse over the days. I also noticed that I was really tired and eating a lot of carbs. And I started to not pay attention and was losing interest in things. And then my sleeping habits sucked and I needed to sleep 10 hours a day, and when I’d wake up, I felt like crap, as if I didn’t sleep at all.