Your symptoms associated together are significant for acute pancreatic inflammation
. And morphine intake doesn't help as morphine can sometimes cause this disease. Your symptoms may be also caused by severe constipations caused by morphine as well. It can also make your gallbladder
overfilled as it caused gallbladder muscle spasmed.
I suggest you to have abdomen ultrasound
and blood tests, liver enzymes tests and pancreatic enzymes test as well.
You cannot get rid of acute pancreatitis
by yourself as it is very urgent state and needs immediate medical attention.