PN is very common.

In the old days it was considered a typical part of aging. This is why doctors are not keen on investigating it unless the patient insists.

There are some famous people with it, they just don't tend to talk about it. Many neuropathies are secondary... caused by something else, like diabetes.

The more dramatic fast moving types, like GBS often do get attention.
Dr. Latov's book, has some bios in it, Andy Griffith, Mother Delores Hart, for example. Peripheral Neuropathy, When the Numbness, Weakness and Pain Won't Stop.

PN is becoming even more common now....and I believe that statins (common drugs) and vaccines are the culprits. Since diabetes is becoming a scourge, incidence of PN from it is increasing as well.

Nerves are very sensitive and affected by many things, and our environment is filled with toxins, drugs, vaccines, and other things to disrupt them.