Hi guys. I've had this problem for about 3-4 years. I can't explain it very well, but I'm going to give it my best shot. I have this randomly occurring hearing loss of sorts in my right ear. I can't really find anything to compare it to. I can hear myself breathing, like someone inhaling and exhaling right into my ear. My voice sounds a lot deeper through that ear when this happens. As I'm typing this, it seems like applying hard pressure to the right side of my neck between my ear and shoulders makes it partially go away. I can still hear the breathing if I yawn or talk.
If I really had to compare it to something, it's like a mix between what you hear when you're underwater and when you're really high on a mountain and under pressure. I've had my mother take me to an audiologist(?) and I was told I'm fine and I have "selective hearing". That was over a year ago. I've tried selecting not to hear this, but it's not helping.