Sorry to hear that you are hurting with a new tone to your T. Sometimes, people get multi-tones in their T. I can understand the fear for this new tone when it is new to you. However many people live with 2 or more tones and habituate to that too after some time. The most famous example of that is David Letterman. Yes, even the best comedian has to deal with multi-tone T too He said he has a low and a high pitched tone tinnitus 7/24. In this 1996 video he and William Shatner (Capt. Kirk of Star Trek who also has T) were talking about each other's tinnitus and even cracked some jokes on it. Letterman said jokingly that while he is entertaining his audience, his 2-tone T is like the emergency broadcast system being tested in his brain. LOL. Looks like people can still live a normal & productive life with multi-tones in their T. So relax and don't panic. Give it time for the body to get used to it. Hope you will do better in time. Here is the youtube video: