JoAnn,
Sorry to hear you're in the hospital and the pain hasn't gone. Here's something I found online:
"Pain After Surgery: A few people have new or recurring episodes of pain that feel like gallbladder attacks even though the gallbladder (and the stones) have been removed. The cause is not known, but it may be malfunction of the sphincter of Oddi, the muscles that control the release of bile and pancreatic secretions through the opening of the bile and pancreatic ducts into the small intestine. Pain may occur because pressure in the ducts is increased by sphincter spasms, which hinders the flow of bile and pancreatic secretions. Pain also may result from small gallstones that remain in the ducts after the gallbladder is removed. More commonly, the cause is another problem, such as irritable bowel syndrome or even peptic ulcer disease.
Endoscopic retrograde cholangiopancreatography (ERCP) may be necessary to determine if the cause of pain is increased pressure. For this procedure, a flexible viewing tube (endoscope) is inserted through the mouth and into the intestine, and a device to measure pressure is inserted through the tube. If pressure is increased, surgical instruments are inserted into the tube and used to cut and thus widen the sphincter of Oddi. This procedure (called endoscopic sphincterotomy) can relieve symptoms in people who have an abnormality of the sphincter."
So maybe it's something like that?
I hope it gets better real soon,