Hello. I am computer dumb.
I've pressed a mystery button that I cant find again, and when I go to compose a new message the text is HUGEMONGOUS. But it's only when composing, everything else has remained normal size. Its a bit weird. How has this happened? Can someone help? It's been like this for a week now and I'm bored of everyone in the office being able to read what I'm writing!

You're the best.
Your friend, Nick.