Welcome to Neuro talk. I also have cervial issues. The shocking sensation you feel, may not be from RSD, and I certainly hope it is not that. I read what the RFA treatment was, and some of the complications that can occur. I would see a neurologist, and a pain specialist again. I had that shocking sensation in my arms, and it was cervial degeneration and disk disease. I had few spinal fusions. I would seek several different specialities to find out exactly what is happening. It is my understanding that the sooner something like RSD is addressed the sooner you can get some resolution and treatment. If this is something pinching on the nerves in your cervical spine, the MRI would pick it up. That is what caused my shocks in the arms. I do wish you all the best. ginnie