Hi,
Have you thought about asking your gp to refer you to pain therapy?
You are in actual pain so it wouldn’t be beneficial for you to not have pain relief however codeine is not a viable long term pain relief because of the addiction (your liver creates morphine from the codeine) so you would need specialist pain therapy to find something more suitable.
This is absolutely something that can be resolved, you just need access to the right help. Speak to your gp, they would (should) never dismiss your pain or your fears and wouldn’t leave you with no pain relief at all. Hope you get this sorted out.