I didn't have as much trouble as you did, but I tried to mitigate any hydration issues early on. I pounded a large glass of water when I first woke up, then started on my coffee for the day. I ended up drinking a pot, but it helped a lot. Then I switched to water and crystal light, alternating. I drank a lot more than I usually do in any given day and I think that really made a big difference.
Even with all that, today I felt very thirsty and dehydrated. So for me at least, massive hydration is critical. Maybe it is for you too?
Anywho, if you wait until Thursday I'll be fasting with you!