I think sometimes the give us insufficient information not realizing we would appreciate knowing more.
My doc has done that. I have been having episodic aphasia and difficulty walking so he sent me for a MRI which was normal. Finally put me in the hospital for closer observation and while I was there one of the things he checked was my EEG. I had an appointment with him a week after I was discharged and he told me that my EEG was "mostly normal".

So now I wonder if it was mostly normal what was the part that was a "little bit" abnormal. I would kind of like to know that sort of stuff.
I think that he thinks, well I know what is going on and know how to treat her so it isn't necessary that she understands all this, she just needs to follow my directions. I trust that he is a good doctor and knows how to diagnose and treat me but it would help if he would share his thoughts more often.