[Erin Pavlina]

I also would get the tones a lot growing up. I thought they might be some form of communication. Then I took a Sensation and Perception class in graduate school and my psych professor explained them away scientifically. I can't remember what he said, only that I concluded that the tones were not mystical in nature. So I can't really say what they are. Experiment and see if there is some pattern.