I have been feeling nauseous off and on for 3 weeks, sometimes accompanied by dizziness and weakness, and sometimes feeling very fatigued. While it started off mild, it is getting stronger with more recent episodes. My teen daughter was throwing up and had similar symptoms but she s gotten over it. I haven t thrown up, but the nausea lingers, coming and going throughout the day. Don t know if it s worth going to the doctor s office because I feel chances are that it s viral.