Thank you for the query.
Upper abdominal pain
(especially if radiates to the back) and itching can be caused by bile ducts obstruction (due to gall stones
or pancreas disease). Skin itching is characteristic symptom for jaundice.
Upper abdominal pain can be also caused by peptic ulcers or other stomach disease
It is advisable for you to have some diagnostics. Full blood work, liver tests (AST,ALT,GGTP,AP), amylase, bilirubin
, urine analysis should be performed. Abdominal CT (to see the pancreas) and ultrasound
(to see the gallstones which are invisible for CT) should be also done. If no findings, upper GI endoscopy should be performed.
Hope this will help.