First…no, don’t drink less water. This will likely make it worse.
Are you potentially eating higher sodium foods when eating? This can cause bloating when you fast. Another factor is carbs. If you are taking in a bunch of carbs while eating after fasting, you can also become bloated. When you fast, you trim water. Carbs, especially starchy ones, retain water. This can hit you harder after fasting.
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A couple things to look at to start anyways.