The minor pain that had started in my foot a few months ago blew up into
something that sent me to an orthopedic surgeon. He diagnosed a trapped
nerve in the heel, similar Tarsal Tunnel syndrome (like carpal tunnel
but in the foot.)

It's a bitch, but that's another thread.

I'm just wondering if this is another goodie more common among people
with diabetes, like frozen shoulder, or something else.

Since I can't tolerate cortisone shots, he pretty much just told me to
ice it and use a heel cup. He gave me "that" look when I explained that
cortisone shots send my pulse rate up to 120 for a week.  But they do.
It's in my medical records, and my Sweetie, who knows the doctor
socially is going to set him straight. He got to live through that week.