hi i had gone through your query and understand your concerns. i would come up with two possibilities,
1.the first one include; FOOD POISONING; the recent food are you taken is the cause.
-physical examination, blood pressure, stomach cramps
etc may confirm the diagnosis.
2.second possibility is, ACUTE VIRAL HEPATITIS;LIVER
FUNCTION TESTS, complete blood picture may confirm the diagnosis.
I hope this is helpful for you, thank you