hey, thanks for the replies.
i think i will go and see my doctor, but i know that i'm the type of person that will put it off, so i'll just wait until i get ill and then ask some questions!
do you get a lot of people staring at you? i get some people that ask questions, and generally i don't mind, especially kids because they don't know, but i've also had some horrible experiences with people telling me its a sign of the devil! ???