I ve been on long term narcotics. I used to be on a high amount of percocet, oxycontin, and fentynl patch. I have two diagnosis. Sphyncter of oddi dysfunction caused from gall bladder removal and had an incident that my back has a bulge in one disc and a pinched nerve in another. I ve been reducing my fentanyl. I was on 75mcg, currently on 37mcg. The oxycontin was 15 mg twice a day, and I don t take it at all anymore. The percocet was 10\325mg three times a day, and now I only take it if I need to. The last reduction in medication was 6+ weeks ago. I am currently having a withdrawal symptom, but there s no change in meds! I feel an intense amount of energy if you will in my spine. It can be discribed as chills in my spine,however it doesn t stop. I could also say that it feels like misfires. Do you know what is going on?