For anyone who isn't aware, Tinnitus – for a lot of people including myself – is that very sound, but constant. Never going away completely, always there, often an amalgamation of multiple high pitch frequencies. I've had it for as long as I can remember and notice I often tune it out subconsciously, but when it's quiet around me, it's there. <br><br><br>So this video's coming up on 3 years old but I only recently found it, sorry!