Hello. My 4 year old, 37lbs,normal height, has had a high fever for 7 days, last 2 no fever. for 9 days he complains of abdominal pains, and this morning at the end of peeing there was blood. Dr did blood work and said white cell count 15.7, and kidneys, and test for cancer neg. any suggestions? History: 2yrs pnemonia, in the past 2 yrs he s gotten unexplained high fevers that lasts ~8 days then goes away. last high fever was 7-4-10.