The reason you see the same treatments and basic medicines and panels each time you go to the GP is because your problems are pedestrian compared to what doctors actually train for. Most likely, you're not even being seen by someone with an M.D. - casual checkups are often beneath their paygrade.
Doctors undergo a decade of specialized training in order to diagnose and treat issues far beyond anything that you can Just Google. Determining the factors affecting which treatments to apply, considering the tradeoffs, and making the right call are skills that AI will not achieve in our lifetime, no matter how many VC-funded tech-bro AI startups try.
If you could spend a day in the shoes of an aspiring medical resident, working 80-hour weeks and studying for board exams at the same time, you'd count your lucky stars that we don't license the software profession like we do medicine. Maybe we should.