Swimmer, Have Repeated Occurrence Of Pressure In Ear, Distorted Hearing, Maintain Good Ear Hygiene. What Is The Cause?

So about a week ago, I got this weird pressure in my ear, and every time someone talks or I talk, it literally sounds like a robot voice, like EVE from Wall-e. Some of the notes are also distorted when I play the piano. I am a swimmer, but I always keep my ears well cleaned after every single practice, but this started during a week that I wasn t doing any swimming at all. It sometimes will go away for a while (either that or I don t notice it), but the past couple of days it hasn t let up at all. HELP!