Your great great uncle was a renowned surgeon, but like most surgeons his claims to know about anaesthesia are greatly exaggerated. The famous ovarian cystectomy was performed in 1809, some 35 years before Horace Wells demonstrated nitrous oxide anaesthesia in 1844. Both occurred in December.
Back on thread, once the gall bladder has been removed by a renowned surgeon, hopefully not also giving the anaesthetic, you can live a normal life and eat a normal diet. And hopefully live well beyond 50.