I have been dealing with a rumble sound in my left ear with intermittent high pitch, clashy tones (think Emergency Broadcast System...). I have had all kinds of testing, imaging...no definite results. I do have Eustachian tube dysfunction as a diagnosis. Here's the interesting part- last year, went to California from the east coast (drove). As we entered the mountain areas of Wyoming, the ear noise vanished. We were out West for 3 weeks and the results for my ear were incredibly good! We came home and 4 days later, the rumble came back. Two weeks ago, we went out for another vacation in Wyoming. Same exact thing happened. We came home on Sunday and today is Wednesday- the rumbles woke me up this morning. I have explained this phenomenon to my ENT and he said it has to do something with air pressure, but he doesn't know exactly how to duplicate that scenario where I live so that I have relief and offered to write me a prescription to move out West (fine by me.) Any thoughts? No one can seem to explain this.