I had a bad experience years back with codeine based painkillers and ended up addicted to them and remember the uncomfortable aches and stomach problem coming off them so these days if I get a headache or something I take paracetamol only . Mild- moderate pain is a strange thing , what iv'e noticed if I sit and focus on it I stay in pain but if I go and do something useful and forget about the pain it goes away .
I hope your pain reduces soon .