I too have the same issue. I hate meeting people, going to places, even seeing the doc when I'm sick because of this inhibition. My main worry is saying my name, I don't want to freeze on it or make a fool of myself. Sometimes, I've surprised myself, when I've said my name without blocking but most of the time, I'll be dreading that moment where I may have to say my name or fearing I might be asked for my name. This stops me from enjoying conversations or makes me want to avoid such situations. I hate living like this. I would love to talk and interact with people (at least for sometime) if not for these blocks. I feel that I'd have been in a better position in life only if I were fluent in speech. I feel you.