In any case, ask your doctor about this type of exam, and see whether domperidone, in addition to the Protium (
pantoprazole) might help. (By the way, gastroparesis is often associated
with childbirth, for some reason.)
In the meantime, start moving to a gluten-free diet to see whether it helps. (It might take a few months of a strict gluten-free regimen for symptoms to begin clearing.) In fact, to be on the safe side, try avoiding ALL grains and dairy.