my 3 year old had the flu a week ago, vomited severely for that night only. however, for the last week he has vomited once a day...usually at night after an hour of being in bed. We've been following the BRAT diet, but he is still vomiting. Could he still have the stomach flu, or is this caused by something else now? Additional info: the whole family ended up with this flu thurs/fri, but we are all fine now? thoughts?