Try dilaudid and nortryptilne........After suffering from pn pain for
years and years....using vicodone, oxycondone, neurotron....
this combo did the trick and the pair do not keep me up
at night. These are powerful drugs, just below morphine, but
it sounds like your life is hardly worthwhile what with your
intense pain, that you should take them Ask you doctor.

Lastly, at night, if you can't sleep because of pain, get up and
do something. Try to sleep sitting in your chair with your head on your
desk. Get one of those treadmills or anything else.....use them
at 2 am if you have to. You will find that although the pain
does not completely go away,there would be a great reduction in same.

All the best: THE WOONDOG

Basically, you gotta try everything til you find what works.
There are 75 different meds for treating PN,
from acetaminophen to methadone.
They fall into 4 categories (plus topicals):
anti seizure, anti-depressant, opiates, & analgesics.
combination/'cocktails' of meds usually work best.