Welcome to the board.
I agree with sallymom - it can't really hurt and if it does turn up something it is better to know earlier rather than later.
At the same time I wouldn't lose a lot of sleep over it based on your brief description. My DS raised some red flags when he was younger with his speech delay and extreme introverted nature. We did a lot of speech therapy and now he doesn't shut up when he's around people he knows. He's still an introvert that takes a long time to warm up to situations and people. We encourage him to push his boundaries a little but we also realize that at his core this is who he is.
