You say you have had x-rays, MRI, done physical therapy and used a chiropractor.
Have you been evaluated by a spine specialist with an MD after his/her hame?
You don't mention an actual diagnosis either, just that it might be one thing or another.
That is not a diagnosis, it's an excuse for an inability to diagnose what is going on with your spine because you haven't been properly diagnosed.
I suggest you forget about what you have been doing for treatment and get yourself to a spine specialist.
You need to see either and orthopedic surgeon who specializes in spines or a neurosurgeon that specializes in spines and get a proper diagnosis and treatment plan.
You need to bring the MRI and x-rays that you have already had with you, as well as the physical therapy reports from the physical therapist that you where seeing.
You may need a new MRI done and maybe some x-rays as well.
Also, it is not a good idea to try any exercises or stretches other than what your physical therapist has given you. Doing anything more than that could, potentially, worsen your spine problems.
Good luck and get to a spine specialist as soon as you can.
Fran