What Causes Feeling Of Having Air Bubble In Ear?

It feels like there is an air bubble in my ear when I clean it with a q tip. I poked my ear drum with a q tip around 2 years ago, very painful for a few hours, never got it looked at because the pain subsided. I'm not sure if its related, but for the past year or so I've had this popping sensation in my ear whenever I clean it with a qtip. Its akin to when you have water in your ears and you clean it out with a qtip and there's an air bubble and it pops