Yes, I have thought the nerve pain was a possibility but the drs. are thinking more that it could be a bile duct blockage, though I did have my gall bladder removed several yrs ago. My alkaline phosphatase level was very high and this is one reason they are doing the endoscopic ultrasound. I, too, take Gabapentin 600mg 3 times a day, but for other chronic pain (neck and urinary bladder). Like you, I'd rather not be on it but it is somewhat helpful.