Thank you for the query.
Such symptoms can be caused by gallstones (what has been ruled out with an ultrasound
), bile ducts stones, pancreas inflammation
, urinary tract infection
, peptic ulcers.
As you have had an ultrasound, next step should be blood work, liver tests (AST,ALT,GGTP,AP), bilirubin
, amylase, urine amylase, urine analysis. If GGTP and AP will be elevated, ERCP should be done. If not, regular endoscopy seems advisable.
Hope this will help.