Hi, I have chronic nerve pain in the thoracic area for the past 10 years. I've had 4 intercostal nerve blocks and they were mostly sucessful but only last 2-3 months. My pain Doc now has me on Lyrica, slowly uping my dose. If that doesn't work Dr. wants to try ANS (advanced neuromodulation system). Has anyone had this done? I really want to get off pain meds.