Want brief explanation about thypoid.

Will thypoid presents as dry fever even though widal o& h is 1:40,for me temp in between 98to99.8 for 5 days widal negative then after 5 days widal o&h 1:160, antiboitics used for 14days,then widal normal,but temperature is same,done all tests chest x-rayclear ,mantoux normal,urine normal,thyroid normal,blood culture negative,esr in April 30 in Juneit is  10,crp 6,us abdomen normal,scrub thypus negative,Rh factor assay negative,smear mp negative,no abnormal cells found,up to now 3 mnths completed but temperature fluctuations in between 98 to99.8 ,what is the reason doctors give valuable suggestion earlier chat with one doctor in practo money wasted for me  but no use,problem not rectified, till date waiting for the correct answer ,hoping the for genuine answer