I would identify myself as an introvert, and I feel differently. I don't hear everything at twice the volume; I hear everything at half the volume, while loud background music plays. Every interaction, I'm having to watch for those cues more carefully, I'm having to strain to listen.
That's why I feel like an introvert; socializing with people is fun, but will eventually drain me.
That's why I feel like an introvert; socializing with people is fun, but will eventually drain me.