I think it's called "tinnitis," and LOTS of people have it, including me. It's a constant buzzing or ringing in your ears. I don't believe the doctors know what causes it, but hundreds of thousands of people go to their doctors about it every year. If you want the last word on the current research, make an appointment to see an ear, nose and throat specialist (otolaryngologist) and they can measure how loud it is and tell you more about what can happen in the future. You're not imagining anything, you're really hearing something. But it's within you, not from outside. Take care!!