Hi, Terry.
Well, you are 80 years old so you are still a "teenager". I am 84 and having the same issues.
Here is what I did, and do, and it helps minimally but it does.
I am fortunate enough to be 4 miles from my gym and so, I am there 5 days a week for an hour, doing all the equipment. The bike for two miles, and all the rest counted to 20 on each.
I take Ibuprofen for my pain 2 pills every 4 hours.
R-ALA, and B-12. and a few other vitamins daily.
.I did physical therapy for a year at the toon of $5000 and it did nothing for me.
I did Acupuncture for 3 months once a week at the toon of $60 per session. and it worked. No more stabbings in my toes.
But it did nothing for the rest of my issues like numbness and intense pain engulfing my feet.
I now use Infrared light on my feet twice a day for the past 2 months and nothing yet, but it says to be patient it takes a few months to see results.
I bathe my feet every night for half hour in hot water and Epsom salt. It helps a little relax my feet enough not to feel pain in my sleep.
At bedtime, I massage my feet with; ARE YOU READY?: Vapor Rub. Cheap and it seems to work a little calming down my pain.
Other than that, I drive well, thank God, and I resign to the fact that I have to live this way until the end.
I do walk with a cane for my balance.
So be well and safe.
Warm hugs (freezing cold here in Maryland).