checked my blood pressure and its aok. I am on a sugar buster diet, no aspartame or such. This sound is still hear, it is sooo faint, if I walk or tv is on I cant hear it. I can only hear it in the silence.

I think we are on to something, we shall soon see. Thank you all for your comments, and pay attention, you might be able to pick it up too, if you are quite enought.