I had DBS surgery 3 years ago and for the most part it was a good decision for me. I recently started to have dystonia in my left shoulder and my left arm is not smooth in it's movement. Kind of Jerky. That is my bad side. The settings for my stimulator are 3 (bi-polar) for my left and 2.5 for my right (which I have no problems with). What could be causing this three years into my surgery?
Also, if I raise the voltage on my right side, it affects my left side as well. Very puzzling.