Do you hear a background hum? Errr, now that you mention it, I guess I do. It is driving the world mad. Is it driving you mad? Yes I think maybe it is. D

Do you hear a background hum? Errr, now that you mention it, I guess I do. It is driving the world mad. Is it driving you mad? Yes I think maybe it is. Did you hear the background hum before today? No, but I definitely do now you've mentioned everyone else hears it.