Hi there. Is your Dr planning to cut you dead or help you with a taper? I dont believe it is dangerous to stop CT with opioids. It can be with alcohol and benzodiazepines. It is unpleasant though and can last a while. I have done many CTs and its definitely doable as can be seen by the many examples in this thread. It might be worth explaining to your Dr that you are addicted and cannot simply stop and ask him/her to help with a taper as that is quite negligent to prescribe for so long then suddenly decide to stop. How much are you taking? It is largely down to preference when choosing cold turkey or tapering so maybe do some research and speak again to your Dr. Good luck. Stay in touch with your progress.
