hi i had gone through your query and understand your concerns. i would come up with four most possibilities to fit your case.these include
1.first possibility,VIRAL FEVER;due to change in weather,exposure to cold
,drenching in rain, are the some causes.
2.second possibility is, JAUNDICE; confirm with serum bilirubin
3.third possibility is GASTRIC FEVER;due to some derangement in the
gastro intestinal system.
i advise you taking Homeopathic
medicines gives safe and permanent cure for your complaints
consult your local homeopathic physician for correct diagnosis of the case and remedy to fit your complaints. or mail me at firstname.lastname@example.org
I hope this is helpful for you, thank you