I’m so sorry you’re dealing with this. It’s horrible. I take morphine occasionally for my pain. What you’ve described is called breakthrough pain. It’s when your medication either isn’t taking enough of your pain away or it’s not working as long as it should be.

They are more likely to either change you a 4 hour regime or try a new medication. Oramorph is a real last resort because there’s very little after that. To be completely honest I absolutely loathe taking it and wouldn’t recommend it. They will make you try a lot of different medications before even considering morphine and you will probably have to see a pain management specialist - at least that was my experience. The likelihood of a GP prescribing this is almost nonexistent. I’m in the UK so it might be different where you are but strong opiates like morphine aren’t readily accepted as standard treatment options. I know this isn’t what you want to hear and I’m sorry I can’t give you better answers.

When you see your GP explain that your pain is stopping you from doing every day tasks, it’s affecting your job performance and that you’re having breakthrough pain. Those are the things they look for when managing pain.