I has the stomach bug last Tuesday, I vomited for hrs. had to get iv fluids. i missed 3 daysof work from vomiting, low grade fever and weakness and severe nausea. i wa sgiven Zofran...helps sometimes. went to work Friday and is still weak, very nauseaus, lost 6 lb, eating very little feeling a bit better, But why still so sick. Could i have H- pylori- no diarrhea.