Sucks to hear you're not doing better. I noticed you mentioned a perineural cysts that extends the entire length of your spine, did I read this right? I have a similar condition at the top of my spine called a syrinx. It is very small, but I did speak to some experts who agree that it could be causing some of the symptoms. In reading about perineural cysts and Syringomyelia, I learned that they can cause a lot of pain. Research Syringomyelia and see with your doc how that is different from the peripheral cysts you have... Perhaps that could explain the symptoms you are experiencing.