I am so sorry your situation is so complicated with what may well be a surgery which produced a bad result. Goodness, if you took it careful, and I was told to TAKE IT CAREFUL afterwards for many weeks, I have a hard time imagining that you did something to cause movement of the paddle, because they DO strive to tie them down securely to prevent movement. This is far more invasive than the trial as both you and I know quite well.
All I can really offer are my prayers for you in seeking to work this bad situation out to the best conclusion for you, with the end result being control of pain which was your goal all along through your careful research and consideration of the procedure. You are in my prayers, my friend.
Great BIG

z from afar,
Mark56