Hi Dizzy Miss,
I see a lot of balance issues lately on the forum. I myself had many questions about this. The surgery that you are referring to I don't know too much about, but I had a balance test done recently that showed 49% loss of the balance nerve, but my balance is not bad. I was told that eventually the brain adjusts and the good ear compensates. As difficult as it maybe I would maybe ask if this a possibility in your case that overtime your balance will adjust on it's own before making the surgery decision. It may be only a matter of time. It is depressing and it is annoying, and it's true that others would never know what you are going through by looking from the outside, but keep up the good faith and just know that these issues will resolve overtime although it may seem like it's forever. Be patient and good luck.