You really have tried. If xanax 2 mgs. didn't work, I am not sure ambian will either. That is a really high dose, that would knock most people on their butts. Outside a neruologist for PCS, there are sleep disfunction clinics in Fla. I even think there is one in Sarasota. I would head there, and after this long without sleep, get someone to drive you. You reaction times would be way off, and the tourists are back. Look into this Abel, this isn't good for you. I am sure you are frustrated, but you need to go get some help at a higher level. ginnie