Thank you for your response.

I don't have diabetes and am not an alcoholic. A DOD pain management doc believes the numbness and coldness likely is from the spine. I don’t remember the specifics, but the X-rays and MRIs indicate lower lumbar DDD, L4-5 anterior spondylolisthesis, and severe central canal and lateral recess stenosis. Before neuromuscular testing in the leg and foot, this doc indicated that neuromuscular testing doesn’t always show a problem even when there is a physical problem. And the neuromuscular testing done on my leg and foot did not show a problem. Nonetheless, the progression of the coldness and numbness seems to gee-haw with spinal problems.