Hi Beccy,
Codeine messed with my head a little. I try and steer clear of anything that changes the way I feel, but sometimes needs must, and many people I know have had to take far stronger for pain when needed and been ok.
I take a mix of ibroprofen and paracetamol if I need to. I've had to take Diazepam for severe pain but talked to my sponsor about it and was fine.
Good luck with your share, and I hope you can get an appointment soon xx