DS got a stomach bug a year or so ago and I kept making the mistake of trying to feed him regular food and milk (formula) when he started to perk up and feel better. He'd hurl every time. So I just kept giving him pedialyte, some white grape juice. Also, when he's had ear infections in the past, he hasn't wanted to eat much either. Just make sure your child is hydrated, use tylenol if there's a fever to make her more comfortable. Probably just needs to rest.