I actually just read an article
earlier today about a real-life phenomena similar to this that happens to people in a sound-dampening room:
‘When it’s quiet, ears will adapt. The quieter the room, the more things you hear. You'll hear your heart beating, sometimes you can hear your lungs, hear your stomach gurgling loudly.
‘In the anechoic chamber, you become the sound.’
And this is a very disorientating experience. Mr Orfield explained that it’s so disconcerting that sitting down is a must.