Thanks everybody! I slept well, am really thirsty, but so far, managing the fast well. I'm a big eater, so I was worried I'd feel awful by now. So far, so good (it is only 7 am though! I have several more hours). I'll be in good hands. Might not update until tomorrow.

Margo, thank you so much for your input. It's good to know that you would do it the same again.