I have noticed over the years my body tries to find its equilibrium with water. We fast and dump water, then some system panics and tries to put it back. It evens out over time, but not usually over a day or so. Keep on drinking dearie and your body will find its balance. Have you ever tried total dry fasting for a day? Even sunup to sundown. I have read that one day of dry total fasting has the healing effect of at least three days water fasting, not even comparable to juice fasting. It is an interesting experience. Keep on keeping on! I feel really good for day three, better than I anticipated.