what kind of scan did you have? CT scan? Ultrasound? Xray?
what other medical problems do you have?
have you had blood work done? results?
There are a few things that it could be in that area.
The gallbladder still could be the problem - a condition called biliary dyskinesia. There are no stones in this. A Hepatobilliary scan could show this.
The pancreas is not visualized well with an Ultrasound because the small intestines lie over it. A CTscan is a much better test.
An Endoscopy looks into the stomach for inflammation or ulcers. This is a good test if everything else is negative.
As for blood tests, you need:
liver function testing
pancreas testing - amylase and lipase
CBC - blood count
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good luck and best wishes!