It immediately keys in all the pain that I've ever experienced because of this. People who know me can understand what I'm saying, so it can't be that bad, yet in my mind, it has been blown out of proportion. I've always been different. I've always had trouble making myself understandable. That is not the real problem.
Many people actually have a similar problem.
Whatever the cause, shyness can destroy one's life. One day in primary school, I had to stand in front of the class and say something. I just couldn't do it. I literally burst out in tears. I cannot remember the teacher.