Close Reading the Norovirus?

Try as I might, I don't have the tools to read onechan's symptoms closely enough to determine if she has food poisoning, a minor stomach bug, or the dreaded norovirus. In any case, I'm taking time off from CitizenSE until we've determined what she has and perhaps even sampled its yucky delights on our own. Because if it is what we fear it is, the next few days will not be fun.