Ok, its been too long since i reread the books, but wasnt Lews Therin healed by Ishy so LTT could recognize that he had killed his wife and all his kin? Didnt Ishy say that his healing was more painful than Aes Sedai healing but also not temporary? M...

I beleive that Rand is losing his mind, but not to the taint but to LTT. Put it this way..in one of the other books (i cant remember which) Rand is thinking to himself that he would hate to be like LTT and stuck in the back of someone elses head what...