I had a spinal cord simulator put in and I started not feeling well. No pain, just didn't fell well. I had a friend look at my back and take a picture and sent it to my dr. He called me in and immediately told me to go to the ER which I did. I stayed the night with IV's etc and thought this would do the trick. I still didn't feel well. I called the surgeon who was head of neurosurgery at UCSF. He asked me to meet him at the ER at UC at 7:00am he next morning. I was in surgery at 9:00.
The leads in my spine were infected and it was a matter of hours until it would have been a critical issue.
The whole thing was removed.
The issue here is that there wasn't any pain. Be aware of what feels correct in your body.