Autonomic Profiles in Pediatric Patients With Cyclic Vomiting Syndrome (CVS), Irritable Bowel Syndrome (IBS),Postural Orthostatic Tachycardia Syndrome (POTS), Functional Abdominal Pain (FAP) or Chronic Nausea

Autonomic Profiles in Pediatric Patients With Cyclic Vomiting Syndrome, Irritable Bowel Syndrome, Postural Orthostatic Tachycardia Syndrome, Functional Abdominal Pain or Chronic Nausea

Retrospectively review the charts of all children who had heart rate variability, deep breathing test, valsalva maneuver, tilt table test, thermoregulatory sweat testing, quantitative sudomotor axon reflex test (QSART) completed and were cared for at Children's Hospital of Wisconsin.

Inclusion Criteria:

• Outpatient services

Exclusion Criteria:

• Inpatient services