Hey, cus. For those who haven't come across this, diplacusis is the perception of a single pitch as two different pitches. It is disconcerting (literally!), to say the least. I had diplacusis for about 6 months back in 2006. I had sudden sensorineural hearing loss and balance issues that started a few months earlier. I was a professional singer, so along with the hearing loss, tinnitus, etc., it wreaked havoc with my life. For me, it played out that my right ear was hearing things normally, but my left ear was like an octave and a half higher. I remember being on a call where I switched the phone from my right to left ear where it sounded fine in the right ear, but when I switched it to left, it was like the person on the other end had just sucked in helium from a balloon. It was very freaky. Mine went away after I lost all the hearing in my left ear later that year. I hope yours subsides more easily.