Hi Drummer- I had a repetitive injury that lead to carpal tunnel surgery.That was in 1982.It was severe, but it had occurred rapidly.The surgery was successful-but I no longer do that activity either.Shortly after I had the surgery though came across an article in Prevention mag that describe the use of B complex vitamins to help heal the area.You probably know that this is actually a narrowing of the space where the nerve travel though the bones in the wrist.You might benefit from a massage therapist who specializes in this area.Wishing you the best to keep the beat going!!!!