What is making my ear hurt?

On my right ear the anti helix/rook area hurts a lot. I don't have a piercing and never had one there so it's nothing to do with piercings. It feels sore and tender. When I press on it, it is very sore but if I press on my left ear there is no pain whatsoever. There is no bump or anything there and it isn't itchy at all just painful. I can't find anything about ears hurting without being related to piercings. Where is the pain coming from?