One day the previous December I was out jogging and my calf muscles cramped up so badly I had to limp home. The next day they were swollen and I continued to limp. The day after that my lower back became inflamed, making it even more difficult to walk. My back would bother me one day, my calves the next, some days both, and everyday I walked laboriously with a limp. I blamed it on a back sprain probably caused by lifting my wife out of bed. She loved to sleep and it was one of the more effective ways to get her up. My nurse practitioner thought it was a muscle spasm, pinching my motor nerves. A muscle relaxant was prescribed and I was told to follow up when it got better. It did get better in the sense that the pain went away, but the limping remained. Finally some six weeks later, she sent me for a spine x-ray and an appointment with a neurologist on the assumption it might be a nerve problem. I was suspecting the same thing.