All I can offer is a hug, since I am the same way. I feel inferior in any group of women of any age, size, profession, etc. I also feel as if I wish the floor would open up and swallow me. Even if I have something I know is intelligent or correct to say, I won't. I have no problem in a group of men--it is soooo not flirting, I just am more comfortable and feel more secure. I'm sure it's something to do with childhood, etc., I just don't know how to get over it!