Welcome KS, Deidreyejay and Rick! Good to have you!

Boy - have I done research on this issue (as most of us have ,I'm sure!) As the book sspamests Introverts feel the most energized and complete when they are peacefully thinking or working in their minds, or by being calmly stimulated by the outside world. Large, loud parties, thrill-seeking, and too many people drain introverts.
Introverts have reactions to two neurotransmitters. They have a low tolerance to dopamine, the thrill-seeking neurotransmitter. Essentially, introverts need way less of this than do extroverts, and too much dopamine makes them anxious and eventually drained. For introverts,
outside stimulation which increases dopamine levels is much like being tickled: not so bad at first, but it can escalate and become very stressful and uncomfortable. Introverts prefer the neurotransmitter acetylcholine, which produces a feeling of calm and wellbeing. This neurotransmitter is raised during calm, reflective activities like reading, drawing or like Alex sspamested, (and it works Alex!

) meditation.
Just read this article I found on what 'noise' alone can do to the introvert! It tells you that a lot of outside (and inside) stimuli
and stress will lead to chronic fatique.
http://www.theintrovertzcoach.com/introverts_noise_pollution_mental_health.html
I really have to watch my whole lifestyle. Sometimes I write a post and I am doing really well

(and you can tell by my post) and then I allow 'things' and people to
overwhelm me and I'm on here posting - really 'messed up'!

There is 'tons' of information on this forum on diet and lifestyle for the introvert to help answer many of your questions. Just keep searching and you'll be thrilled with all the posts. They have helped me so much!
As of tomorrow afternoon, I am off work for 10 Days and I am counting the seconds to get away from the whole world for awhile!! I am going to end this with an
extroverted scream tonight!! (please forgive me)
YA -HOOOOOOOOOOOOOOOOO!

Sincerely, Margee