Not to worry about the voice. That was something nobody thought to warn me about. It lasted the better part of a month when all I could manage was a whisper. Lots of fun trying to talk on the phone! After a few weeks I would be whispering and suddenly a word would sound loud. Then more whispering. It gradually went away and I have had no problems since. I notice that I had lost the upper register of my voice, but just now, a couple of years out, I am regaining the high notes. Bottom line, this is just one more thing to wait out, but it WILL end!