i'm freaking out!!...i read that norovirus is diagnosd by the prominence of vomiting and litle fever...she never had a fever...this means to me that norovirus ( a really bad one ) is in our community now and she got it from eating out, because she has no kids and wasn't around any sick that she knows of....food poisoning symptoms always include diarhea, norovirus is persistent violent vomiting...i'm obsessed with the fear of myself or my kids catching this!!do you think that not everyone will vomit with norovirus??