Of course, one of the hottest days of the year and he has a tummy problem. Threw up a few times last night (tummy was somewhat empty) so I am witholding food today to give his tummy a rest. He is acting fine, but doesn''t want to drink. I have been giving him an ice cube to lick about every half hour and keeping him indoors in a cool house. Should I worry about him getting dehydrated? should I encourage him to drink water or just keep giving him ice cubes?