We get more and more common to an extent! I got shingles 4 yrs after my neuropathy onset , in my arm along an already surgeries ulna nerve, and WOW was the shingles a neurological setback! I like your rheumatologist comment - I have yet to seek one out, but have heard others use them and am thinking it may be worth a try! Congrats on 8 yrs cancer free! I am 1 yr throat cancer free, and treatments set neuropathy back a bit, but like shingles, and later the shingles vaccine, spaced around my Covid vaccines, I am back to my “normal “ unexplained neuropathy level!