heh, I know this feeling better than I care to admit. I've been fighting with crushing debilitating depression since I was a child, I've honestly shut off recently, from everyone, but perhaps I should come back too. I don't lack passion in my life, I just need something to aim it at to relieve my bursting seams. Perhaps.
If you ever want to talk, I may not be able to offer anything in the ways of sagely advice, but I have too much empathy for my small body to hold and I'm always willing to listen.