Unlikely – I doo see where your coming from regarding GPs, we also had an unpleasant experience with them. In the end my husband spoke to a local drug dependency charity/care giver. They assigned him a key worker who was able to get him access to a doctor who works alongside them and was able to give prescriptions without prejudice. With their help he got off the codeine and also managed it so he was able to kick both the opioid and codeine addiction safely.
The care provider was able to keep his medical stuff separate from gp records too. Honestly, I do not know where people would get help from if it wasn’t for the charity/outreach because the general GP service is shocking. I was told basically to walk away from my marriage as nothing could be done. Just like that.
Google local services, get a feel for what help is there. If it’s any help and your in Lancashire then Inspire and CASH is the help for this area. Maybe Google Inspire and see what they do so you know what you are looking for. Good luck and I really wish you all the best. If I can be of anymore assistance please just ask.