Hi longtimer, you are right about prescription drugs, although opiates are by far the worst because they are essentially a mild form of heroin. All opiates are addictive, physically not just mentally. A person who has been on them for a long time is definitely physically addicted to it. That doesn't mean I am judging Forgetmenot for taking this drug, because each person must make their own decisions about their own body and health and how to manage, and no one can tell you what is right for you.
If the CBD oil doesn't work, may I suggest you try a tincture that it 1:1 CBD and THC? Most places this is legal now, although in some places you need a medical card to get it. I suggest this because it works very well for me, for certain inds of pain. Of course this doesn't mean it will work for you but it is worth giving it a try if you have not already.