I've discussed EA with him, and he said there may be something to nerve compression/entrapment leading to dysfunction. He adjusted my back today, and said that the part of my spine where the sacral nerves are found is sore, and could be the cause of the toe problem. (And maybe the EA.)
...
Has anyone else had numbness in the legs or feet?
Maybe I should go and see a chiropractor. I went once when I was having a back issue, and it was rather magical. He just lifted one side of my hip up with a little rotation, and the muscle that was cramping stopped.
As for numbness and nerve entrapment, I do back stretches in various ways, and one day by stretching out and flattening the middle of the spine, I caused numbness in the pelvic region that lasted for a few weeks. Not total, but maybe 20% of the region. At the time, Google had a 3-d human body, where you could peel away layers. I peeled it down to the nervous system, and lo and behold, the spot where I was numb was fed by a nerve originating right where I was flattening out my back.