Just one more voice warning against xanax/alprazolam: it is extremely difficult to get rid of it after longer periods of regular use (most docs put the limit at 6 weeks). It's one of the drugs where detox can be fatal. I have detoxed from it, and it wasn't a picnic. Also see:
http://en.wikipedia.org/wiki/Benzodi...rawal_syndrome
"Borderline diabetic" may mean that you have insulin spikes/problems, and even if that isn't the cause of your PN, it may well contribute to the pain you are experiencing. You may want to look into eating habits that control your insulin levels. This is of course longer term, but you might be surprised at how beneficial this can be.