Are you still checking for dehydration? With all his other problems, if he's still dehydrated, that's not helping anything and he will need more fluids immediately. Pepcid first thing in the AM and many small meals of anything,(and I mean ANYTHING) that you can get him to eat is better than not eating at all at this point. Sending powerful prayers for Ace. Hang in there, buddy! We're all pulling for you! Keep us posted, please!