You need some serious help. I went through Insomnia for about 3 days when I took Cymbalta and I did get suicidal. A week is very rough. In some other TBI forum some one mentioned they didn't sleep for a month despite Benzos, Ambien etc., I can't even imagine that. Even there was a movie called Insomnia.

Since you have not tried any tricyclics like Elavil, Trazadone etc., you can give a shot. Elavil is not expensive (may be $10 for a month supply and depends on dosage I think). Trazadone can help with anxiety induced sleep disorder I heard. Another option is you can get these meds from online pharmacy in Canada which is legal.

Some meds are far more cheaper there compared to U.S. and manufactured by the same company. Once I bought some eye ointment which costs $170 and I paid copay $50. Next time I got the same medicine from same company for $25 in Canada.

There are other extreme measures and probably you have to be like Michael Jackson who took propofol (he got ODed on that btw).