Thanks everyone for the good wishes and the possible ideas. I seriously doubt I have a flu. I have absolutely no other flu symptoms: no fever, headache, bodyaches, chills. Nothing else. Simple the gastro-intenstinal stuff (vomiting/diarrhea).
Maybe I've just upset the entire balance within and it is taking a while to readjust. Tho, I still suspect parasites, since it all kicked off after my Pineapple/Pepita flush last week.