My local doctors, (a GI specialist, cardio and
internist) conferred and
said that the GI study wasn't indicated, and
sent me to a reknowned cardio who specializes in female-pattern heart disease instead. (They did scope me and test for acid reflux, both which were negative).
My new cardio said that more than likely, my experience during the CCF cath was a "global" reaction to the provocation agent. He recommended a second cath and participation in the NHLB's WISE study.