<s>[INST] I am a male 79 years old, have brief chills the may sweat have had for about 2 months also white blood cell count to high had bone marrow test and ok so far dr has no idea what is wrong when I chill have no fever as I check that and blood pressure. thanks [/INST] Hi, From history it seems that you require evaluation of your case. As you get chills often and WBC is high it indicates there might be having some infection in your body giving this problem. Consult your doctor and go for,1, X-ray chest,2, ultrasound abdomen,3, complete urine check up.4, Blood checking for RFT, LFT and other tests. After all reports, one can have clue about your problem, and then they will go for treatment accordingly. Ok and take care. </s>