I know physicians are extremely busy now days but

Went to see my primary care physician yesterday, the first time in over a year, had been seeing his NP or whatever her title is. I want to start a new diet at the beginning of the year and the place asks for a doctor's statement saying ok. While there I discussed the events of the past year, also took MRI reports, etc. verifying some of these things that they could put in the chart and told him diagosed with polycystic kidney disease and he looked at a report from 2 years ago saying multiple cysts. He said no, not true, where did you get this diagnosis from and I told him from my nephrologist?? I then mentioned about an eye disease and he said, " Oh, well, a lot of people have that." Yes, I guess that might be true but since my father went blind with exactly the same eye problem, does not make me feel ok that "a lot of people have that." Dont get me wrong, do not want the physician to start boo-hooing or the like but do I expect too much to have someone show a little, even if faking it, compassion on their end? I guess by his taking the stance of, are you seeing a reliable physician and what have they told you, if anything, can be done might be taking up a few seconds too much time for him to get on to that next patient? To say I am burned out by most physicians now is an understatement.