As a musician, I have noticed that when I sing, my voice sometimes completely goes away. This is scarey! It doesn't happen the first few minutes I sing, but after two or three songs, I notice a dryness in my throat/vocal cords and then my voice abruptly stops. I habitually drink about a gallon of water a day, no coffee, occasionally a soft drink. One of the reasons I stopped smoking regular cigarettes was so I would have a better range. The V2 cigs have improved that, but now I am dealing with this. Any comments? And thanks.