I thought this was pretty interesting. Psychiatrists and psychologists weigh in on Trump's personality and behavior.
His fear of being 'less than', his apparent anger, self-absorption, revenge reflex etc.
STAT interviewed 10 psychiatrists and psychologists — some supporters of Trump, some not — about the president’s behavior and what it might say about his personality and mental health. All are respected in their field and close observers of Trump. They based their views on his books, public statements, appearances, and tweets, but emphasized that they have no firsthand knowledge of Trump.
https://www.statnews.com/2017/01/30/tru ... aign=sciam
It's just a good read and I feel like it just scratches the surface.