posted on Mar, 21 2011 @ 06:44 AM
I'm not sure if someone has posted similar, but I thought I would add this to the discussion.
I have a feeling that what I am about to describe doesn't apply to your situation, but one never knows,
so I will give it a shot.
I was reading a psychology book recently, and a Dr. described a patient who was simply hearing the natural hum/buzz of blood flowing in the ears, yet
could not ignore it like most other people. So it can be a psychological
thing. Again, I am not saying this is what is happening to you, but just another possibility.
I personally experience very loud ringings intermittently, at random, and I have asked others if they can hear it as well, and of course they can not.
I have narrowed it down to, and I could be wrong, fluctuations in blood pressure. I am not sure of exactly what happens, and maybe someone with more
knowledge could explain it on a deeper level.
I did not see your response to the question of whether others can hear the hum as well. I was going to suggest attempting to record the humming sound
to determine whether or not it was caused from internal or external stimuli, but if no one else can hear it, you can assume it is internal.
Well that is about all the knowledge I have on the subject. I hope you figure out what is causing the noise, and if it is a medical issue, I hope you
get it checked out and that everything works out for the best!