Fever from 40 days Widal 1:160 20 days back taken antiboitics like gudcef 200, azithromycin,moxinow,ornio o ,for 10 days then Widal 1:40 but temp pattern is same in blln 99 to 99.8 from 40 days .,during Widal 160 fever pattern is same ,after 9 pm it is normal .Morning at 8am it is going to 99 ,and at afternoon it is 99.6 ,from 40 days,
thyroid normal,bp normal,esr 30 ,
crp 6 ,smear for mp negative,total wbc cells 12900,urine Alysis 2-3 Pus cells,
calcium oxaclete crystals+++, what is the reason for fever fluctuations from 99 to 99.6