Well my experience is I had carpal tunnel for yrs and yrs... I did not know that I really should have gotten this taken care of I had surgery and STILL have it. I found out I have a slipped vertebrae and have had numerous bouts of back pain-radiating down the leg and also with the neck to the arm. I also have nerve pinching at the elbows. So guess that was enough to give this to me. I always thought if I got out of the back pain I was doing good -had lots of PT but now to have PN that is taking over my body it seems... where do you turn?