I have had vomiting and diarrhea for a couple of days but for several weeks prior to this had been feeling very clammy, sweating a lot and quite weak, although I also have fibromyalgia so often do feel very week and fatigued. Had my first flu jab about a week and a half ago - and felt ravenous for food but then did not feel like putting it in my mouth for several weeks also before the vomiting and diarrhea began. Haven t vomitted today so far and no diarrhea have eaten dry toast with a little apple sauce 2 already today (now 1.30pm) and cup of tea with very little milk and no sugar +small glasses of filtered water. I feel as though I could eat for England but know I would be very upset at the sight of food. Work for NHS (clerical) and although I have had much sick leave already this year really don t feel able to go into tomorrow till end of week. If this is gastric flu when should I return to work to prevent infecting others.