Did you ever try keeping a journal? As I was reading your post, journaling was something I thought might help. I looked into it just a few days ago & was surprised to discover how much it had to offer. Perhaps after you gave it some time, through your jounal entries you could discover what helps those good days you mentioned, and uncover what's bringing back the not so good days. (This was one of the very reasons I thought of begining a journal myself.) Just an idea I thought worth considering. Good luck.