There is some beginning human testing about to start now, but that is for spinal cord injury not for discs.
I would suggest that you get another opinion from another spine specialist.
Just because the size of your disc bulge is not large, doesn't mean it won't cause you spine problems and pain.
Both disc size and pain are very subjective.
There are many people that are walking around with disc bulges and have no symptoms, don't even know that they have them.
On the other hand, how a disc bulge affects a person is very individual. What affects one person one way, can and is very different in another person.
A good doctor will not make the comments yours has, but will rather look at the MRI pics as just another piece of the puzzle in determining the cause of your pain.
A good doctor will try to match the pics of an MRI with the patients symptoms.
You need another doctor to examine you and your MRI and find a course of treatment that will help you.
Good luck
Fran