Thypoid reduced but low grade fever.

First body overheat normal temp.after 5 days temp is blln 99 to 99.8 with headache,Widal o&h is 1:40,malaria negative,after 5 days Widal O&h 1:160,esr 26,taken antiboitics like gudcef 200,ornio,rifagut,azithromycin,moxinow,but fever pattern is same morning after 8am 99and afternoon it is between 99.6 and evening at 8pm it is 98.6,widal done o&h 1:40 stopped antibiotics for a month .Now today is 50 day,Esr 30,crp 6,tc 12900 ,smear for mp negative,urine 2-3 Pus cells, calcium oxaclete crystals +♀+,chest x-ray clear ,tyroid normal,bp normal ,us abdomen normal,but in kidney small calyx stones of 4mm of 2 stones, everything is normal, bleeding time 3min, clotting time 4min,I am having headache,fever in blln 99 to 99.6 ,what is the problem will typhoid antibodies present in body for 3 months .Which tests are to be done now using doxycycline antiboitics,alkarate syp,pls give any medicine,or the which blood tests are to done now,will tyhidot igg igm will help to get info about thypoid,