I have had a crazy tingling, creepy crawling sensation in back. Feels so weird. I have had intense joint and muscle pain in legs and I am loosing strength. I finally got doctor to get an mri of back, also checked brain because I knew I had cyst that was found years ago and said to be an incidental finding. It is 11mm and looks like it has a bubble or sac around it. Anyways back report says perineural cysts on spine at several levels, but just an incidental finding. I am in so much pain and can feel this weirdness in my back. I just want to get better, I think that either what is going on in my back or head is the cause of my pain. Anyone have advice or similar problems?