Hi, Seeing there is so many reasons for neuropathy, it doesn't make it very easy to find the right answer.
Have you had a test for B12 levels, with all that prior emotional stress you have had, might be worth checking your B12 levels, i believe that stress puts a big strain on our vitamin B's supplies and you have certainly had your fair share of that and of course " Liza's charts " can be very helpfull to see what tests are available that you might not have had done yet.
I am wondering if you are on any antideppressants, some doc's perscribe them for PN [with other meds as well ], may also help you with that feeling miserable, you mentioned.
good luck,
Brian