ll be good for you to understand that autonomic dysfunction (be it
vasovagal syncope—more commonly known as neurocardiogenic
syncope— or POTS) can be accompanied by gastrointestinal [GI] symptoms including nausea, bloating, vomiting, diarrhea, constipation, cramping, and abdominal pain. The reasons for this are twofold: first, there are the direct effects of the autonomic dysfunction itself.