I hear a hum and usually see a man wondering about. Most of the time it's just his silhouette and he stretches and moves around making a loud hum that sounds like a room full of people talking at a distance. Sometimes the rooms in my house seem to change shape in length or height. It's really difficult to deal with because it almost feels like you're always asleep and dreaming these things. I get really angry and anxious when the noises start to be a knocking or one voice is clearer than the rest. I'm not sure how others cope with this, so any advice is much appreciated. I hope my experiences also help you feel you're not alone..