Basically over last 3 weeks my ds has intermittent severe left side tummy pain and high temp. Admitted to hospital on Wednesday as was passing out with pain and vomiting. 4th lot of urine samples taken and white blood cells, protein and blood in sample and looked murky. Put on another round of antibiotics but the results came back from lab that nothing was grown. beginning to be really concerned as to what is causing this. He hasn't any pain at the moment but slight fever still but much improved. Do children get kidney stones? He has been told he will be sent appointment for scan. Anyone have any similar experience.