One clear sign you’re an introvert: You feel lonelier in a crowd than when you’re alone. Solitude feels good to you.
Have you always felt different? Were you the quiet one in school? Did people ask you, “Why don’t you talk more?” Do they still ask you that today?
If so, you might be an introvert like me.
Being an introvert means you lose energy from socializing and gain energy by spending time alone. That’s it. Introversion is not a flaw, a disorder, or a diagnosis. It’s a healthy personality trait that comes with many strengths.
Keep in mind, that nobody is completely introverted or extroverted — we all show both traits at different times, though we tend to lean more in one direction or the other.
Here’s the list, it’s pretty convincing.
Delusions of Adequacy 