Sis, avoid using computer without wearing protective glasses. Also, wag mo ring hahayaan na empty ang stomach mo. If possible, kumain ka ng mga small amounts of foods pakonti-konti. Nakakahilo din kasi yung gutom. Eat crackers kapag nagugutom ka. Also, consider eating protein-rich foods. :)
My doctor-friend said try ice chips! Of course he only told me this after I'd already gotten over my nausea but it's worth a shot. Ginger supposedly helps. But for me it was just breathing fresh air that helped the most.