Ulcer is possible. I would also consider GERD as well as inflammation of the upper digestive tract.
The normal gallbladder ultrasound and HIDA scan would make liver and gallbladder disease less likely.
I would consider an upper endoscopy or upper GI series at this point to image/visualize the upper digestive tract. If negative, more specialized testing such as a 24-hr pH study or gastric emptying scan can be considered.
These options can be discussed with your personal physician.
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.
Kevin, M.D.
kevinmd_