My daughter is six years old. Sunday morning at 2 am she began vomiting, and runninng a fever, and incoherent. We took her to the emergency room, and she was tested for the flu, strepp and urine was taken. it all came back negative. they said motrin and tylenol, monday it persisted, with stomach pain. We took her to her doctor were blood was drawn and sent for a MRI and the results were the same negative. We are at a loss because the fever is constant.