There is significant scope of misdiagnosis of RS. Diagnosis of RS usually starts with a cardiac workup, as the gastric symptoms may go unnoticed, the cardiac symptoms are scary and can be quite severe. After an EKG, Holter monitor, tilt test, cardiac MRI, cardiac CT, heart catheterization, EP study, echo-cardiogram, and extensive blood work, and possibly a sleep study, a cardiologist may rule out a heart condition. Often a psych workup may ensue as a conversion disorder may be suspected in the absence of heart disease, or structural heart abnormalities. Diagnosis is often made based on symptoms in the absence of heart abnormalities. A gastroenterologist will perform a colonoscopy, endoscopy, and ultrasound to locate or eliminate problems in the abdomen. Determining the cause of<unk>  is still not an exact science. If you have an ultrasound or sleep study, ensure that you know how to reproduce the symptoms, as it is difficult to detect any abnormalities when symptoms have subsided.
Roemheld syndrome
Larsen syndrome
Bogart–Bacall syndrome
Jeavons syndrome
Michels Caskey syndrome
McGillivray syndrome
Havana syndrome
Zechi-Ceide syndrome