Narcissistic personality disorder

People living with mental health issues are not necessarily roaming the streets, they are our family members, our friends, colleagues at work, classmates, and even spouses. An average Nigerian has economic, financial, social and marital issues they struggle which strain and affect their mental health. A person with narcissistic personality disorder will not necessarily look insane BUT their decisions will affect their relationships because of their mental status.
Narcissistic personality disorder is a disorder in which a person has an inflated sense of self-importance, a deep need for excessive attention and admiration, troubled relationships, and a lack of empathy for others. But behind this mask of extreme confidence lies a fragile self-esteem that's vulnerable to the slightest criticism.
A narcissistic personality disorder causes problems in many areas of life, such as relationships, work, school or financial affairs. People with narcissistic personality disorder may be generally unhappy and disappointed when they're not given the special favors or admiration they believe they deserve. They may find their relationships unfulfilling, and others may not enjoy being around them.
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.

Reference:
https://www.mayoclinic.org/diseases-conditions/narcissistic-personality-disorder/symptoms-causes/syc-20366662