Here's the thing. I need to talk to my parents about personality disorders !

Male, 23 y/o
After several months of concentrated reading and research, I have come to a secure conclusion that I embody traits and tendencies of Avoidant Personality Disorder, Narcissistic Personality Disorder, and Schizoid Personality Disorder. The case examples and behavior observations cited in research leave no room for me to be mistaken. It's clear.

Based on my recent reading, I've recognized that each of my personality disorder traits/tendencies will show themselves at different times. The narcissism in me shows a need for approval and influencing of others, but at a depressive phase or a 'lull' in life/status, I may be extremely shy, anxious, and Avoidant to the point that I can't even step outside or have a walk down the street without palpable anxiety.
Then the Avoidant in me has Schizoid tendencies. I may at times hunger for intimate relationships but I fail to connect since I seem to have a strong detachment from the world. I may have learned very early in my life about negative compensation for my detachment, which is probably what has caused my narcissistic tendencies. I always knew what my personality was like, but it was never much of a dysfunction or disorder until present times - my early adulthood, which is said to be when these disorders start presenting more seriously.

Anyways, all evidencing my own issues aside, here's my real issue: My parents and, especially, my Father.
Now that I realize I have experienced the ins and outs of narcissistic personality disorder, I can see clearly that my Father is a narcissist in an even more extreme form than I believe I am. I always knew he was on the self-aggrandizing, self-projective side, but I know now that the man is a real narcissist.

How does a son sit down securely with his slightly unstable Father and explain that he believes that he (the son) has a personality disorder and, maybe pending a clinical diagnosis, might need some form of treatment to bring it under a little more control?
How is a narcissistic Father able to hear this from his son when he recognizes the obvious similarities between himself and his son?

I'm not sure how to go about communicating with my parents about what I think my issues may be because each of my parents may see their own parts in my issue and be distraught not only for me but about themselves. It's almost like it's better to keep it to myself, yet somehow I don't feel like that's good enough, to not let them in on important things I've discovered about myself.


This one of those deep and unavoidable issues in my personal life that has to be dealt with one way or another.
Advice that helps my thought process and decision-making would be much appreciated.

Thank you very much for reading.