All I can do to describe this 'sometimes' occurrance is to say it strikes me at night and it is not a pain, but instead feels like my spine is trying to twist itself inside out. It's like a restless leg in-so-much as my spine feels like it is requiring me to twist, jump and shake to try to make it STOP but it seems to have a mind of it's own. It's awful.....that's all I can say, and the episodes last sometimes close to an hour. If ANYONE else out there has had this and has found a cause factor or solution, please please please let me know. All I can figure is my sugar content has been too high lately. Otherwise I really have not been doing badly, or should I say as bad as some times in the past. I just don't want this to happen ever again.