I do intend to document whether or not my RX's are looked at (I am taking copies; each of us is also getting a letter from our physician stating specifically what conditions we have; my doctor's wife went through a bit of airport hassle at LAX recently, relative to a health problem, that has us all a little on edge).
If I am indeed asked to disclose the nature of my medical problems, I will document as best I can that this happened, ask for the names of the personnel involved, their supervisor, etc. And since I write at least a dozen complaint letters to some entity per week (my hobby), I will complain.
We had no problems in that regard last year, so are hopeful it will go smoothly this year as well - one never knows.