ABDOMINAL PAIN, NOT GALLBLADDER

I HAVE FREQUENT PAIN UNDER MY RIBS AND UPPER ABDOMEN. GALLSTONES WERE RULED OUT. MY SURGEON, TAKING A WILD GUESS SAID IT IS PROBABLY ACID REFLUX. I DONT EVEN GET HEARTBEARN ANYMORE. I DOUBT THIS IS IT. I DONT KNOW WHAT TO DO. IT USUALLY HAPPENS MOST WHEN I AM SITTING FOR A WHILE. ANY SUGGESTIONS?

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