### Human:\nis it possible to have a stomach virus without vomiting or diarrhea? . every so often i experience nausea fatigue and stomach pain as if i had a stomach virus--could this just be the way my body expresses the norovirus?\n\n### Assistant: yes it is possible to have a stomach virus without vomiting or diarrhea. norovirus may have a prolonged infectious period even before a patient starts feeling sick. people who recover from the infection keep shedding virus through their stools for weeks and may potentially spread the infection to others.