Wow, so interesting to read the responses to this thread. I see a lot of commonalities here between what I experience and what many others mention. Avoiding so much...I have left many workshops/classes before they started because I felt totally overwhelmed and terrified...like someone might discover that I'm not perfect. It ebbs and flows, but was probably the most debilitating when I was in college. My doc prescribed citalopram, which helped a LOT. I remember walking on campus one day, shortly after starting the medication and just feeling - different - and I realized that I was walking with my head up and making eye contact with people. I could actually SEE the world instead of hiding from it. I have not used it since college, but wouldn't hesitate to go back to it if I really felt it was needed.
It's particularly challenging because 1) most people see me as very successful and together, have no clue that I struggle this way, and 2) I'm married to an extremely extroverted person. My DH would go to EVERY social event he's invited to, not to mention a lot of them he's not! Fortunately, he is very gentle in trying to understand when I have a rough day. He still doesn't understand my total terror of being embarrassed, even over the tiniest thing, but he handles it well.
Anyway, it's nice to know that I'm not the only one who has a hard time with this.
2007 Trek 5000
2009 Jamis Coda
1972 Schwinn Suburban
"I rejoice every time I see a woman ride by on a bike. It gives her a feeling of self-reliance and independence the moment she takes her seat; and away she goes, the picture of untrammelled womanhood."
Susan B. Anthony, 1896