HI and welcome to the support group -
I find it very irritating that some doctors, even spine specialist, will look at MRI's and/or CT Scans and say there is nothing here that would cause your pains - all the while that you have degenerative disc disease along with 3 bulging discs.
There are many people walking around with bulging discs while having no pains whatsoever - then one person could have a bulging disc and be curled up in fetal position crying from the pains. Pain is pain, no matter how you look at it. We are all different and pain affects all differently.
Primary Care Physicians should order an x-ray to see if anything shows up - then an MRI and/or CT Scan should be requested. Being referred to either an Orthopedic Spine Specialist and/or Neurosurgeon Spine Specialist would be the next step as they are the best at reading the results. Once they review those they can direct you in the right direction of treatment plans - those may include pain management (PHYSIATRIST pain management is the best), physical therapy, chiropractic care, etc., This is the normal regimen that should be taken once a PCP has ordered an x-ray and not seeing what maybe causing the pains or seeing something that could be causing the pains.
However, in your instance, having an extra disc (L6) is fairly common - we have seen quite a few people posting that they recently found out they have an extra disc. And those that have posted often have the L6 disc as the main source of pain.
I am sorry that your doctor took such a long time to get you into the right path for treatments and am sorry that you did lose quite a lot. It's unfortunate you had to endure this and sad that these types of programs (internet, support groups, etc) were not around when you we were younger.
I am glad that you have found the right treatments that are working for you.
We do let a lot of people know that if a particular physician is not listening then it's time to move on and find a new one - and keep moving on til you do find the one that will.
Please let us know how you are doing - take care - Joy~~