A person suffering from extreme traits of introversion to the point of being described as withdrawn, cold, and isolated, might be properly diagnosed with Schizotypal personality disorder.
An introvert seems to be an individual who has traits associated with introverted personal characteristics, meaning they prefer to pay attention to their inner concepts and beliefs as opposed to everything that is occurring around them.
The people with Schizotypal often suffer the most in case there is a huge amount of crowd that is there, as they feel like they do not belong in it.
Learn more about introversion, here:
https://brainly.com/question/10107618
#SPJ4