When I was in elementary school I did fairly well, got decent grades. Then when I was ten and my dad died things kind of went to hell because I had to go live with my mom and (evil) stepdad. My mom was a good thing but obviously the (evil) stepdad was not good at all.
I was very shy and self-conscious to begin with and the other stuff just made me feel so very different from everyone else. Most of the time I just wanted to crawl under a rock and hide. That might have been the beginning stages of the agoraphobia I fight these days. Who knows.
One thing in particular made me almost faint and that was when I was required to give an oral book report. I guess it could have been called public speaking anxiety. By the time I got to high school I would rather take a zero instead of standing up in front of the class.
Eventually I outgrew it. When second son was in Cub Scouts I was a den mother and awards chairman and had to be in front of the group of people talking. It didn't bother me too much as long as I had a xanax or something first. I wasn't terrified though.
Of course now I talk to anyone, anywhere. It only took me ohhh about 35 years to outgrow my shyness and 45 to become annoying.
Have you ever been uncomfortable talking in front of a crowd?