Be careful with the inversion table/bed. I used one for 15 years, and it helped, then, one day, the pressure of being inverted messed up my Achilles tendon. It had had enough of the stretching pressure. But, I swore by that inversion bed for many years. The pain relief was great until I came back upright.
I've also heard that being inverted can cause glaucoma, though I never had problems.
I know three people who have had neck surgery, and they're all much better.