L.P.
DEFINITELY GET A SECOND OPINION.
I have herniated cervical discs, and was told by one neurosurgeon that I needed surgery (discectomy and fusion) immediately. That I was a walking spinal cord injury waiting to happen. That if I was in a fender bender, I could be paralyzed. He would schedule me for surgery the next day, if his schedule was open.
I left there in a panic, feeling convinced that my situation was that grave, and I had no idea how I'd care for my then 18 month old son, when I couldn't pick him up for 10 weeks.
Well, after much pressure from my parents, I got a second opinion, and the second neurosurgeon told me that it was probable that I'd need surgery at some point, but certainly not immediately. He put me on anti-inflammatories and muscle relaxers, and after about a month, I was symptom free, and have remained so now for 2 1/2 years.
Now, I'm not suggesting that he did anything magical by giving me meds, but my point is that there are VASTLY differing opinions in the neurosurgery world. And I am a little confused about your situation, why they didn't do the fusion with your original surgery, if it was something you were going to need eventually anyhow.
Please don't be afraid to get another opinion about your situation. And here's a **hug** for your pain. I know how bad it can get.