I can't hear 15KHz tube whine anymore, but my tube whine-like tinnitus that has been there as long as I can remember is still there. It seems odd, to me, to be

I can't hear 15KHz tube whine anymore, but my tube whine-like tinnitus that has been there as long as I can remember is still there. It seems odd, to me, to be "hearing" a sound that's higher-pitched than the sounds my anatomy can actually perceive, but here I am.