I would agree with the ERCP. One consideration would be Sphincter of Oddi dysfunction - which can cause gallbladder-like pain. The term has been used to describe a clinical syndrome of biliary or pancreatic obstruction related to mechanical or functional abnormalities of the sphincter of Oddi. This can be magnified especially after a cholecystectomy.
If there is hesitation about the ERCP, one can obtain a fatty meal ultrasound study. If it is positive or inconclusive, an ERCP can be done with Sphincter of Oddi manometry.
If there is a problem with the Sphincter of Oddi, there are various options. Medications used to treat this would include calcium channel blockers and nitrates. Electrocautery and botulinum toxin injection can also be tried. If these methods fail, then surgery is always an option to correct this condition.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Thanks,
Kevin, M.D.