Just have a question from the veterans on this site or anybody that knows this. I had the stimulator implanted on Jan 3, 2012. I have gone in for some tweeking the last couple of weeks. Last Friday I went in to be tweeked and after 45 minutes and no luck the rep decided to have an x-ray done. The stimulator moved!! It moved up a couple of vertebrae and the top slide over a little. Now I have been complaining of pain in my shoulder blade area since the surgery. I think the muscle was torn due to surgery, now I'm wondering if some how the muscle has anything to do with the movement of the stimulator. I have an appointment with the doctor on March 9. The rep said that they have to go back in and slide the stimulator down. The rep said that this was common--How common is this?? I think the doctor would have mentioned this to me that this could happen. Just kind of bummed right now. Has it happened to anyone else? Thanks for the support