Sounds like what Eckhart Tolle described experiencing ( http://www.eckharttolle.com/ ). He tends to talk really slow on his audiobooks, which is why I don't listen to them very often, but he does make some good points. He sad he had reached a point where he just plain couldn't stand to live with himself anymore. He was ready to completely give up. Then it hit him that he wasn't sure who the self was he couldn't stand being around and who it was who couldn't do the tolerating. He was no longer even sure of who he was exactly. He talks about the way this was resolved for him and the impact it had had.