When there is narrowing in the lower back this is called lumbar spinal stenosis. If it is in the neck it is called cervical spinal stenosis.
Symptoms of spinal stenosis can vary in different cases. There may be no symptoms at all, since narrowing of the canal in the vertebrae does not always compress the spinal cord or nerves.
Lumbar spinal stenosis can cause pain in the legs when you stand for long periods of time or when you walk. The pain usually eases if you bend forward. This is because the spinal canal is being opened up when you lean forward.
Cervical spinal stenosis can cause pain in the neck and shoulders. The pain may be occasional or chronic. It may radiate down your arm or hand. Cervical spinal stenosis can also cause headaches or numbness. It can also affect the nerves that control your balance, which can lead to clumsiness or a tendency to fall.