You don't sound like you have any diabetes indications at all, with A1C that low, with your weight, and diet being in good order. I only had some pain and tingling before I was diagnosed, and with exercise it went away. The neurologist said my big toe didn't have feeling, and she thought the problem was nerve damage from my knee surgery and/or back surgery. She said exercise wouldn't help, but I do it anyway and it helps. I have no pain at this time. My son learned, as a paramedic, that swollen ankles and feet in the elderly indicate heart problems due to poor circulation, so exercise is indicated to help that.
If you have a pinched nerve, I don't understand why a doctor is not having you in physical therapy to correct the spine, joint, or bone that is impinging on a nerve. Pills don't move a nerve over, and pills don't strengthen muscles to hold the bones or spine in place. They may alleviate inflammation, as does an anti-inflammatory diet sometimes. My simple exercises, which I continue to do long after the pain is gone, keep my spine straight and keep me pain free.
Of course, my spine has dried and shrunk, but there is little I can do about that at age 84. If I slump a lot at the computer or the sewing machine, I can cause a pain in my left arm and I know the source of the pinch in my upper spine. As for tightness in the feet, I had that on a long plane trip and arrived home with fat feet from sitting so long. No more alcohol during a flight, and I drank water to correct it. I keep moving. But I don't turn to pills unless I need an antibiotic for bladder infections. It doesn't happen often because I don't eat sugar. I wish I had learned to be an athlete when I was young. I'd rather read a book.
Sorry I can't come up with a quick cure for pain. It has a cause, but it is sometimes difficult to discover. Dorisena