Good luck no. 1 ninja. You are feeling good now so I won't put the mockers on your drinking so much, it might be just what you've been needing. But be vigilant and always listen to your body. It is very likely your need if not your desire for water will diminish as the fast goes on, probably drastically. So listen to your body and only drink what you need. :)
Great stuff, I hope you've done the hard work re the stomach pains in previous fasts and now have clear sailing ahead. :)