I just received an email from Mayo Clinic that was a special report on chronic pain that I thought I would share with the members in this discussion. I think it addresses a lot of questions I've seen and more.

Mayo Clinic Chronic Pain Report -- Chronic pain - From living with pain to living your life:
https://mayocl.in/2IDALzR (PDF)

The email also included a link to the latest version of the book Mayo Clinic Guide to Pain Relief which I'm sure provides a lot of good information. I recently received a copy of the Mayo Clinic book 5 Steps to Controlling High Blood Pressure which I've just started reading to see if I can find some new stuff to work on besides the medications I take ☺.
-- https://order.store.mayoclinic.com/books/GNWEB22