I'm glad you are feeling much better. I agree with you about mental addictions or obsessive thoughts and about the emptiness that remains. When you first posted this thread I was also having the same kind of thought... what is the point of coping, which for me means just getting through the day vs. coping meaning having a productive, enjoyable, fruitful day.

I also think my depression, or specifically the repetitive thought patterns, has the flavour of a mental addiction more so than really a mood. I wonder if my low energy also has that flavour as it is also a mental thing, not just physical. Once I can get myself motivated I can usually get something done. The problem is to get started and not be self-defeating every step of the way.