It's at least as many days of refeeding as you've done in your previous fast. Every book or expert will tell you that, and the refeeding period is there for your own protection whether you feel ok now or not.
The reason you're retaining water, especially in the ankle, if that you're eating salt.
I'd also most eat fruits (70% of diet) as well, but a variety of fruits, if weight is really a concern. It's summer, fruit is so cheap and there is such a nice variety.