@woodsiechris

I started digging further after replying. I know I have post cholesectomy syndrome and I do remember a doctor mentioning Sphincter of Oddi Dysfunction but it was years ago and I didn't realize that they're one and the same. I would still suggest a 2nd opinion if you haven't had one because it's surgery. But I can tell you that I'm now 18 years after my gallbladder was removed and I still have what feels like gallbladder attacks from time to time if I'm not careful to avoid fatty foods. I eat dairy (either American cheese or mozzarella cheese and 1 egg a day) but, no meat of any kind. Who knows how much worse or with what greater frequency the attacks would happen if I ate meat (I avoid for ethical reasons, not dietary but it seems to be a win/win). I will say this - and it's clearly anecdotal because I'm only 1 person - if I'm 18 years post-cholesectomy and I still have gallbladder disease symptoms if I'm not careful (SEVERE nausea, diarrhea, abdominal pain, back pain - different from my nerve damage pain), then I think maybe it's not so likely for this condition to fix itself.

I found this Cleveland Clinic website page. Maybe it will help you.
https://my.clevelandclinic.org/health/diseases/14516-sphincter-of-oddi-dysfunction