Originally Posted by
CravenMorhead
IT is also to note that everyone's preception of the world is based off their senses. We know how most people see and interpret the world. There are, and I believe this to be your case, people who can perceive the world based upon different rules. You can hear into the higher ranges for example. There are also examples of people who can see into the IR or UV ranges. There are some people who see ghosts and they're just the radiator in their rooms.
It isn't really anything to be concerned about but you can have your doctor look at it at some point. If it is something that is really bugging you, you might want to invest in noise cancelling headphones. Can you hear a dog whistle?