I'd echo what Sorcha said, Kendall (and I'll direct this to Desdamona as well, who mentioned being exhausted by her dreams). Remember that dreaming is simply a different kind of thinking than you practice in your waking state, and you can learn (through practice) to take control of your dreams a bit -- not entirely, but you can dream with purpose.

Visualizing your vocal folds healing and you singing strongly again, as you go off to sleep might help (It might help them heal, as well as helping you wake up happier). Also, you can ask a specific question about something that is bothering you: ask for an answer, or a way to solve a problem. Write the question out on a slip of paper just before you drift off to sleep. It may take a week or two of doing this before you're able to decipher the answers that come to you in dreams. But even your dreams remain eternally wierd, it might help to end the day thinking of finding solutions rather than feeling overwhelmed by the questions...

The dreaming brain (mine, at any rate) is very like a child: it likes puzzles, games, things to do.

Good luck!

P.S.: has anyone had the experience of waking up with an original song in the head? Or do your dreams ever have a musical background, like a movie?