 [ Symptoms ] i have had gastroenteritis for three weeks now is this serious  i was diagnosed with the neuro virus i have had the symptoms for going on three weeks now i no longer had the diarrhea but still the nausea dizziness and stomach pain how long does this last do i have something to worry about i am tired of being sick [ Disease ] hi i really think you should consult a doctor for this since i am not a medical professional i do not want to give advice that might hurt you inadvertently to do this you should go on healthtap where you can access a doctor through a video consultation really easily and can give you legit advice goodluck <link>