Fevers More Condition_treatment My 4yr Old Has A Fever Once Or Twice A Yr For 48 Hrs, Its Now More Frequent With Vomiting And Headaches. ?

My 4yr old has a fever once or twice a yr for 48 hrs, its now more frequent with vomiting and headaches. ? - fevers more condition_treatment

This fever began, when they accounted for approximately 1 year. He said he would not grow. If these fevers, can not tolerate anything in the stomach, not even water. 48 hours after the onset of the disease disappears and it goes very well. Last year we had two such episodes. In this year came in September and three weeks later it happened again, but this time he complained of headaches and abdominal pain. Abdominal pain is common. Ideas?