that would cause tingling/numbness in feet would most likely travel down your legs, and effectively give you some odd sensation in at least part of your leg. Usually spinal problems will also not cause identical symtoms in both limbs/feet either. If both of your feet are tingling/burning at the same time in the same pattern, more or less, it is most probably not the back.

As I have said, I have had spinal issues 8 years and when I first came down with PN, an orthopedic and a neurologist in consult advised that this might be stemming from my lumbar originally. I knew then it was not possible.

it is very possible to have PN from some unknown or not yet evident cause,and also have PN from spine as well. 2 seperate conditions overlapping and confusing you.

Now due to the limited ability to diagnose over the net, I am taking my best guess as someone who has both PN and herniated discs in the same area.

Are you going to see a neurologist? Have you had an MRI? Have you had any testing?