Symptoms. Sometimes, people with the condition are unaware that they are afflicted, as they do not present with any symptoms. For these people, they may never know without undergoing a CT scan or an MRI. However, there are several common symptoms that do occur. These include: numbness, tingling, and/or weakness in the limbs, neck and back pain, mobility problems, difficulty balancing, pain or cramping in the legs, and (in severe cases) bladder or bowel dysfunction. When symptoms occurs, they typically progress and worsen over time.