When the Cymbalta didn't help with my statin pain, I was put on amitryptiline--started at 3 mg & ended up at 50. It didn't deal with the pain so much as overwhelm it. The 50 mg simply knocked me out. I had trouble waking up, didn't really, sorta stumbled thru the first half of the day, needed strong stimulants to really get going. No way to live, at least not for me.
They don't know what causes statin pain, so my situation isn't the same as yours. With actual nerve damage, that type of pain may well be something you need to escape. I don't know.