Why do I have constant neck pain? A dull aching mainly in the back of my neck that sometimes comes down to my shoulder and down my arm.

Dull Ache Neck. Hello. How far down your arm does your symptoms travel? Any history of trauma to your neck (falls, motor vehicle accidents, etc.). Would not expect narrowing around your spinal cord b/c of your age. It's possible that you could have some bulging pressure in a disc fueling your neck, shoulder, and arm symptoms. Might benefit from short course of Toradol 5 days or Medrol (methylprednisolone) dose pack 7 days for pain.