Ever since Donald Trump became president of the United States I’ve been feeling depressed and anxious with an ever-present sense of foreboding. I thought it was just me.

Then I read the book, The Dangerous Case of Donald Trump.

The first section of the book consisted of several essays by mental health experts discussing Donald Trump’s many personality disorders. Even though I was well aware of these, seeing them collected in this book really brought home the dangers of having a president who is literally “crazy,” in that he suffers from many serious personality disorders.

The second section of the book discussed why psychiatrists and other mental health professionals have a “duty to warn.” When someone is a danger to themselves or others, professional ethics say they must warn the affected parties. In this case, the “affected parties” include the entire world.

But it was the third section of the book that really shook me. It was about how Trump was affecting the mental health of individual people. They wrote about how many of their patients and acquaintances (and they themselves) were having the same feelings that I was.

In one of the essays in the book, Jennifer Contarino Panning, Psy.D, a clinical psychologist, called it “Trump Anxiety Disorder.”