A bright white spot on your spinal cord is of concern. This generally means that you have had an injury to the cord from the herniation. This needs surgical treatment in my opinion.
By your description, you have congenital stenosis of the cervical canal. This means you were born with a narrowed canal and any disc bulge, herniation or bone spur can then compress the cord and cause injury.
In your particular case, you might need a laminectomy or laminoplasty along with a fusion of the herniation level or possible artificial disc replacement. You need to see a spine surgeon very soon and get an opinion.
Dr. Corenman