My mom had to go to the hospital yesterday because of stomach pain. The doctor suspected an inflammed appendix and removed it. But her usual doctor suspected gallbladder problems a few weeks ago. She has high blood pressure and heart disease and they had to give her medicine to lower her blood pressure during surgery. I am concerned because she had to stay overnight because her blood pressure was still too low 12 hours after surgery and she wasn't producing any urine. The nurse said it was the blood pressure medication but it seems like 12 hours should have been plenty of time for the medication to wear off. They took a wait and see approach (they're really nice people but i'm worried they aren't checking her for other possibilities.) some websites said some things that can cause low blood pressure/no urine output are gallbladder or pancreas infection (maybe the hospital Dr. Misdiagnosed her appendicitis, read it's very common), heart disease, pulmonary embolism clot (from laying still in a hospital) and other things. She is being released today and I would like to make an appointment for her to be checked by a specialist if possible. What type of doctor is for gallbladder/appendix/pancreas type problems? Does anyone have a similar experience and any advice? Thank you!