It will probably depend on what is causing the problem, I expect. I have had my thyroid removed due to Graves' diesease.
If you do need surgery, just make sure that you have an experienced surgeon, if you have private insurance you should be able to choose your own surgeon. The main possible complication of the surgery as I understand it is damage to the parathyroid glands, which fortunately I managed to avoid. I am now on lifelong medication of course but as long as my dose is correct, there are no side effects.
If I were in your position I'd get an earlier appointment (if possible), to get action as early as possible, and to ease my mind about what the results actually mean.