Bro I know something about this.
You want to think long and hard before you go under the knife. I suspect that they may fuse some of your vertebra together. Even if they don't do that, do some research on back surgery. Very often people end up with worse pain and less mobility than before the surgery.
I have what is called spondylolisthesis-spondylosis. It means a degeneration and forward slippage at L4. I was probably born with it to some degree, but never had any real problems until I got hit by a car while riding a mountain bike.
I've had all kinds of treatment. Honestly I believe the best healer is the slow passage of time. I mean slow in terms of months, years. I didn't squat for several years, thought I never would, but now I'm doing it with a smith machine.
I got some relief from chiro and from physical therapy. I don't know if those are indicated in your case.
I would recommend trying the epidural injections, especially since this involves swelling of your disk. They will inject catabolic steriods into the epidural gap. It won't hurt even though the needle is fat and long, since they will numb up the area with a local anesthetic. Don't worry, I doubt that this will make you shrink all over. The idea is to reduce the swelling which is causing the problem.
I had this done. There is a small risk. They use a
"loss of resistance" technique. Meaning after they get through the cartlige the needle moves more easily since it is in the epidural gap. About 1 in 100 times they don't feel a loss of resistance. This happened in my case and the needle went too far and punctured the membrane that keeps the spinal fluid where it belongs, bathing your spinal cord. When this happens you can have bad headaches for weeks. They finally fixed it by drawing blood out of my arm and injecting it into the gap. The idea is that the platelets from the blood get into the hole and heal it up.
Again, only consider surgery as a last resort and realize that you could emerge from it in worse shape than when you went in.