Could there be a creation of a forum to discuss "The Hum?" This is a phenomenon that 2% of the population experiences - it's not tinitus. It's something different. People hear a low-frequency "hum" or rumbling sound that cannot be attributed to any manmade sources like household appliances, diesel machinery, etc. It's an "organic" sound that cannot be pinpointed. Tremors or physical vibrations can be experienced along with these events.
At any rate, I've experienced this since 2009, and I thought I was losing my mind until I read up on this phenomenon.
Thanks, in advance! And, thank you for all of your hard work.