E.S.
My daughter had a stomach virus that lasted over a week. The first couple of days she could not hold anything down and we took her to the pedi and he gave her some meds to stop the throwing up. She stopped for one day then started again. She was very lethargic(sp) and was really pitiful looking. We ended up taking her to the er and the said to only give her gatorade or pedialyte ( she was older than 10 months) Anyway, they gave up more medicine and she finally got over it. It was the longest week of my life because at such a young age they don't know how to make it to the toilet. If he is not better soon I would take him back to the doctor. Good luck!