Earlier this year a doctor killed a family member of mine by telling her, across multiple visits in the same week, her swollen ankle was a sprain and to just rest. It was actually a blood clot due to being overweight and on birth control pills. The day after her last visit, she threw a PE and died alone on her couch.
Another doctor told another family member his chest pains were end-stage cancer and he would die within a month. A second opinion showed it was mesothelioma treatable by state-of-the-art radiotherapy delivered by only one lab in the country. He's still alive two years later.
I've probably got another half dozen stories just from immediate relatives about doctors seemingly doing random or nonsensical things instead of driving proper diagnoses and/or treatments forward.
Doctors are in general awful unless you can afford to buy an entire private "council of doctors" to consult and berate each other into actually getting shit done.