I don't see your description as a difference. Depression manifests a variety of ways, even on different days.
Trying to repeat formerly rewarding behaviors and finding them lacking is not unusual when depressed. It's like thinking your milk is ok and then upon tasting or smelling it, you realize it's sour. There's a certain disappointment in that which can lead to negative self thoughts. Ex: how could I be so dumb to think THAT would make life better?!!
So how to solve it? I've always found reading and learning a new skill / topic helps to draw me out of depression. Nothing too challenging because I don't want to fail, of course, but little successes can be rewarding. For me anyway.