How does it affect your perception of sound? I have had tinnitus for the past year or so. A constant high-pitched ring that is always there, and never varies. Most of the time I don't notice it. But it's there. Lately the past couple months I have noticed all my guitars sound ****ty. Really everything sounds bad to me. I have tried every adjustment I can make on every guitar, but I cannot dial out this unpleasant sound I am hearing. Hard to describe, but it is a faint thin nasally squeak or something. Piercing, but in a way that has nothing to do with EQ. So now I'm thinking it's not the instruments, it's me. Has anyone experienced anything like this?