I'm almost certain most doctors, like you said, won't give you stockpiles of any narcotic pain meds. May be a good idea to resort to some natural things, there are a couple good options that are completely legal, probably acquirable if SHTF doesn't include nuclear/chemical/smoke winter. I am not an expert on this but things like ginger root, silver (colloidal) and garlic are often mentioned by naturopaths as good natural antibiotics. From a pain front I know clove oil is a pretty potent topical pain med especially for toothaches. I am sure there are other such plant based solutions out there that will not require you to acquire and store narcotics. Not sure this would work for a medical emergency but I am sure there are people here who know more about this than I do. Most of the stuff I know of are probably tropical, from grandparents etc when growing up, not sure how that translates to North American forest/woodland.
Field Tested, Zero Approved