Going to bathe after eating does not represent any particular danger if you are in good health. Only discomfort is likely to be felt. This is why we recommend that you wet your stomach and neck before entering the water.
And if during the digestion, our body temperature rises to promote it. Rest assured, this temperature rise is minimal. And so there is no risk ofhydrocution.
Be careful, however, in the event of a heavy and watered meal in fragile people who can not stand the bath!