I have heard these frequencies for years. Twenty years ago I learned that if I hummed a strong tone for about 10 seconds,(sometimes I would repeat this 2-3 times) the 'frequency' was pushed back by the strong vibration my sound was making.
Sometimes I would hum through a few different pitched tones if there sounded like there was more that one frequency. This is a technique that works for me and some friends I have shared it with.
I had always believed these "frequencies" were not mine personally, just the collective feelings and thoughts of the world around me. Nothing too sinister. However, HAARP does use frequency manipulation. Try this technique yourself and see if it works to block it out.