I know what you mean. When i go the the t I freeze up big time. I get really nervous and it's like my brain leaves the room or turns off. (Like 'Sorry, we're closed for today.') It's like someone has me by the throat and I feel like my brain is just spinning around like I'm in a big washing machine. When I try to explain things I just can't remember and I lose my train of thought. It's very frustrating. It's alot easier for me to talk when the t asks me questions. But if i'm left to explain on my own it's just a big jumbled up mess of words.