It's clear from what you've told us that you are a responsible and caring keeper. I didn't mean to imply otherwise. To help you break this fast, it will help us if we know how it started. You said he's just shy of 4 years old. Have you had him that whole time? You said he's gone on several fasts? How many? How long did they last? What was he eating at the time each fast started? How did you break those fasts? Just to the best of your recollection. The more we know, the better our advice will be. Thanks.