I know these feelings as an artist/cartoonist and now as a writer of fiction. One of my introjected personalities was supposed to get their own comic or story series and I made the mistake of putting their name on an online game I had been playing and the next thing you know people are using it up a storm and for various reasons. I know this to be true because I googled the name first just out of curiosity and there were no results then, a year or two goes by and there are over 2000 results and now it is... let me check right quick... over 36,000 results. Always be careful what you reveal in your works and place an itellectual copyright on it so, nobody can steal your stuff.