We live over by the Publix in the New Ga. area, and we have noticed a very loud, vibrating humming noise in our house over the last 2 months. We are not sure if it is inside the house, however, as we have turned off all of our power and we can still hear the noise! Now we think it may be coming from outside. It sounds like a truck idling continuously 24/7. I have very good hearing, and the humming is driving me nuts! Just wondering if anyone else has heard this noise?