Talk to General Physician on White Blood Cells Increases To 21.8 And CPR Is 25

Hi, My mother is having this problem. White blood cells is increasing and CPR test showing 25. But there is no bacteria growth in blood culture test. Symptoms is sweating sometimes, cool body, feeling tired and weak, body pains. Please suggest me what to do and what other steps to do to check what’s happening to my mother why is this