I experienced what I believe was food poisoning last Thursday and Friday (vomiting, diarrhea , every hour for 12 hours or so. It s been a week I m still suffering from on and off nausea, excessive saliva , dizziness , cold/ feverish/clammy spells. I also have a stuffy nose and mildly sore throat, night sweabutane loss of appetite. Ive also been handling a large amount of stress lately. Is this the flu? Or something more?