From the Mayo Clinic Website:
Symptoms
Signs and symptoms of narcissistic personality disorder and the severity of symptoms vary. People with the disorder can:
- Have an exaggerated sense of self-importance
- Have a sense of entitlement and require constant, excessive admiration
- Expect to be recognized as superior even without achievements that warrant it
- Exaggerate achievements and talents
- Be preoccupied with fantasies about success, power, brilliance, beauty or the perfect mate
- Believe they are superior and can only associate with equally special people
- Monopolize conversations and belittle or look down on people they perceive as inferior
- Expect special favors and unquestioning compliance with their expectations
- Take advantage of others to get what they want
- Have an inability or unwillingness to recognize the needs and feelings of others
- Be envious of others and believe others envy them
- Behave in an arrogant or haughty manner, coming across as conceited, boastful and pretentious
- Insist on having the best of everything — for instance, the best car or office
At the same time, people with narcissistic personality disorder have trouble handling anything they perceive as criticism, and they can:
- Become impatient or angry when they don't receive special treatment
- Have significant interpersonal problems and easily feel slighted
- React with rage or contempt and try to belittle the other person to make themselves appear superior
- Have difficulty regulating emotions and behavior
- Experience major problems dealing with stress and adapting to change
- Feel depressed and moody because they fall short of perfection
- Have secret feelings of insecurity, shame, vulnerability and humiliation
When to see a doctor
People with narcissistic personality disorder may not want to think that anything could be wrong, so they may be unlikely to seek treatment. If they do seek treatment, it's more likely to be for symptoms of depression, drug or alcohol use, or another mental health problem. But perceived insults to self-esteem may make it difficult to accept and follow through with treatment.
If you recognize aspects of your personality that are common to narcissistic personality disorder or you're feeling overwhelmed by sadness, consider reaching out to a trusted doctor or mental health provider. Getting the right treatment can help make your life more rewarding and enjoyable.
I am not a therapist or a psychologist, but it seems far more difficult to explain Trump's behavior without the diagnosis of Narcissistic Personality Disorder.
As far as Trump's narcissism, remember when everyone kept talking about 'the pivot'? That after he got the nomination, he would act more Presidential? That didn't happen, so after the election everyone thought that he would act more Presidential. That didn't happen, so everyone thought it would be after the inaugural. Sean Spicer blew that out of the water on day 1.
This weekend Trump had no meetings, no golf, no Mar-a-lago. Left to his own devices he tweeted 50 times between Friday evening and Sunday afternoon. Reading those tweets my impression is that the President is receding more and more into the bubble of self-righteous victimhood. With Mueller, SDNY and numerous Congressional investigations pending, that sense of self-righteous victimhood will continue to grow.
I think Trump projected his fear about the endgame when several Republicans voted against his Emergency Declaration. He senses the erosion of support in Congress. When he talked about bikers, police and the military supporting him, my initial tendency was to dismiss this as a bit of wounded ego bravado. I don't really worry about the police or the military. The President's cult of personality is not large or persuasive enough right now.
But I do worry about the 'dog whistle' effect of his tweets. When Trump's ship of state begins to sink, he will kick a lot of people overboard on his way to the lifeboats. He will try to spin a fantasy that this is all fabricated, and he is being overthrown by a coalition of Radical Democrats, disployal turncoat Republicans, the Deep State and the Fake Media. How his supporters will react remains to be seen.