Every once in a while my ear will feel like it popped, then I can hear my heart beat in one of my ears for 10-30 minutes. I can sort of feel it too, but not much. It used to happen a lot 1-2 years ago, but not really anymore. I also used google (probably shouldn't have) a while ago and one thing said it was just some harmless condition, and something else said there was a tumor somewhere, I'm putting my money on the non serious condition as it has happened for a few years.
So has anyone ever experienced this, or know what it is?