good morning, with the complaints of fever for 5 days and with exhaustion and with reports of 1:160 titres , we can label it as typhoid
, but for confirmation the repeat titres of WIDAL should increase by 3 to 4 fold values after which we can tell it for sure, but till then its better to start the treatment, but i suggest u to get a blood culture
done along with complete blood count
to know ur plate let status to rule out the possibilities of dengue
fever, for further needs and guidance , contact ur primary doctor.