I'm wondering how severe the need for alone time or socializing can be on people. Ever since I was young I get sick if I spend too much time in large groups of people. I get overly stimulated causing me to get migraines and become incredibly tired. The problem has lessened over time, but I still have it occur sometimes. I don't typically get like this if I have someplace I can be alone. Even being in the center of the entire group is fine if no one tries to get my attention.
I was curious if other introverts have such physical manifestations of introversion. Also, I'm curious if extroverts have similar problems with periods of no contact with other people. To me that seems even worse since there isn't the possibility of just tuning everything out.