I have had issues with my ears on and off all my life. About 10-11 years ago I got a nasty fungal infection in my ear canal, like swimmers ear. Totally not a serious problem but man was it painful, it felt like someone was jabbing a knife in my ear. Head to your Dr have him look at it, if there's an infection there they will give you some ear drops which will make you feel a lot better pretty quick. Doesn't sound like it is anything to worry about though.