No. You're imagining things.
I used to imagine that whining so well that when we closed down the computer lab in school, I'd known when someone left a monitor on when they turned their computer off, and walk right to the monitor that was still on and turn it off, too, just by following the imagined sound. Since being able to hear 15khz is apparently an imagined ability, I was apparently using my psychic powers instead to find the monitor that was still on. Now doubt this is a much more believable explanation.