Absence of Dark Thoughts

I'm going on my fourth day of feeling okay.  It's kind of weird and I feel like something is missing.  My past experience is that I can't count on good days being the norm, but I will take what I can get, when I can get it.  I am wondering if the Deplin is starting to work.  Also, I've been jogging with the dogs for the last week and a half, could that be part of the mood change?  Apparently exercise is key to fighting depression, so maybe.  But I don't know if a week and a half is long enough to make a difference.  Anyway, I don't know why I'm feeling better, but I am.  I still don't have much interest in doing things, but at least I'm not sitting around constantly thinking about how life is hard and not really worth it.  I'm not sure if life feels like it's "worth it" yet, but there's definitely an absence of dark thoughts.  I am not going to get ahead of myself and think that I'm out of this 4 year depression, but it is a real relief to have almost a week of emotional ease.