My son started his flu yesterday morning at 9am and vomited all night until 1am when we took him to the hospital. they gave him a shot of gravel and he was fine and went to sleep after that. He had a fever the next day. he is drinking fluids but no food. and he was fine with vomiting all day. until 5pm he started up again. i had been giving him the same fluids such as Gatorade. Can you please help me or give me some advise on how to make him feel better??