I agree with the suggestion to go in with a one-page list of concerns. Only I would modify that.
I now go to a general doctor's appointment with a 1) summary of critical health issues 2) list of surgeries, exams and tests.
For my Specialist appointments I add a Status update noting any changes since the last visit.
I now have a lengthy medical record and no doctor can spend the time figuring it out. They are happy to see a well written summary...and I find that their NOTES are more accurate now.

Between one organization and another I see a need to learn how to work with computer records. Some places pull in everything from everywhere creating great confusion. They need to set up programs to separate critical current health info vs. secondary less significant health data.