I can attest from my own interactions that your point number 2 is spot on. My father died of cancer back in 2006, and while I don't attribute his death to this

I can attest from my own interactions that your point number 2 is spot on. My father died of cancer back in 2006, and while I don't attribute his death to this cause directly, miscommunication delayed treatment. Don't expect physicians to call each other, don't expect them to think about you much in their rare off hours. They're human, tired, and busy. Any connection you can make by concentrating on it is one they don't have to make instead.