Thanks Khanz. As far as I know it's just a psychological thing, but I don't know much about it, but Jaime watched something about it (ZombieX), but he neither comes here anymore, not does he speak to me any longer (no pun intended). I did find
http://www.selectivemutism.org/, I hope that helps.
I never thought it cool, no, but other people did. I think I just got used to it, but I'm sure it was brought about by simple shyness when I moved to Norwich School - completely new everything after 8 years of growing up with the same people.
There, a tad off-topic, but it's off my chest and everyone can find it. Thanks again.