With my rotator cuff injury last year, I know a bit about nerve damage as I had impingement syndrome...drove me nuts at night...unable to sleep...whole left shoulder/arm burning. I can sympathize, hon. It's no fun at all.
Have you tried or has the doc suggested Lyrica? I know it's not for everyone, but it was the only thing that enabled me to sleep when nerve pain was at its worst. It can be sedating, so some folks would rather not take it for that reason. But for me, it helped me sleep much better. It's usually prescribed for Fibromyalgia but works for other nerve pain too.
How is Eliz? I think about you two so often, David. Much love to both of you...