Thank you for the query.
Stomach issues and itching can be caused by bile ducts obstruction. Due to bile ducts blockage, the bile can not be secreted to the intestines. It causes jaundice
. One of the symptoms of this condition is whole body itching. Other possible symptoms are upper right or middle abdominal pain
radiating to the back, nausea, dark urine, whitish stools.
Undigested food parts in the stool and abdominal pain can be also a symptom of pancreas
Food allergies should be also considered.
I suggest you to visit your doctor and have some tests done. You should start with abdominal ultrasound
, blood work, liver tests (AST,ALT,GGTP,AP), bilirubin
, amylase, urine amylase, lipase. Stool tests should be also done.
Hope this will help.