<s>[INST] my son who is 9 threw up two weeks ago and ever since hasn t had a very normal eating habit. we thought he was better and then about 5 days ago he started having really bad stomach cramps along with vomiting, diarehha and dizziness. I took him into the ER yesterday hoping that they would do a cat scan or some other test but all they could tell me is that it s a very contagious stomach bug that s going around, however it s been going on for a little while and no one else in the house has gotten it. Is there anything that it could be or that we could do? [/INST] Hello! Welcome to HealthcareMagic! As per your description the child has some intestinal infection. It doesn't need cat scan. If it's persisting then take him to a pediatrician, rather than landing in ER. Mostly such infections are self limiting. But in the case of children, it's better to get him checked and investigated as required. Take care Regards, Dr. Ratna Mulay, Pediatrician </s>