I have had DB stimulators since 12-99. I have had no problems with them until my surgeon adjusted the voltage slightly. I began hearing a high pitched whine within two hours of the adjustment. I could put my hands over my ears and still "hear" it. I returned to the surgeon who informed me that the tingling I was feeling in my teeth was very common but that the ear ringing was one he had never heard of. He reset my stimulators to the old settings, and the :sound" dimnished but it is still there. Frankly, it's becoming annonying to have this 24/7. Anybody with DBS had any similar experience? I am open to suggestions or recommedations. E.J. Bryan "I never said the things I said"--Yogi Berra 52/40/13