Earlier quoted context omitted.
I wonder if that doctor has ever had major surgery himself and been told not to use painkillers? Even if that is the case, pain seems to vary greatly in how it affects people. I would be very hesitant to tell someone that they should just let the pain "guide" them, because I have no idea what it is like for them.
I wonder if you have ever actually been about to die or, rather, you felt as if you were going to die but were in no actual danger.
What's the relevance?