hi guys. I have been having this problem for years. It seems that I become so silent when there is two and more people around me. even when I try to talk, my voice suddenly sound so low and sometimes I feel they don't even pay attention to what I say, I feel ignored alot

. However as some people leave, I feel confident and start to talk alot with the 1 person left as. Its like my mouth is easy to speak out just about anything
maybe someone know or has experienced this problem and could share the cause and the solution to this problem
Thanks you so much