hi welcome to HCM
-i had gone through your query and understand your concerns.
-basing on your symptoms i would come up three possibilities.
1.first one may be ACID PEPSIC DYSPEPSIA;
-eating junk food are some possible causes
2.second one may be,DIABETES;check your blood sugar levels for confirmation
3.third possibility include;JAUNDICE;increased serum bilirubin
levels may confirm the diagnosis
wishing you good health