Longitudinal Evaluation of Gastric Emptying and Accommodation in Children With Dyspepsia

Inclusion Criteria: * Able to complete the Pediatric Cardinal Symptoms Questionnaire * Both parent and child must be able to speak and understand English or Spanish Exclusion Criteria: * Have global developmental delay, autism disorder, or psychosis * Are nonverbal and/or illiterate * Lack fluency in English or Spanish * Have other GI comorbidities such as inflammatory bowel disease, celiac disease, eosinophilic esophagitis, peptic ulcer disease, GI malignancy, or gastroesophageal reflux disease responsive to medications (medical records will be reviewed to detect these exclusions) * Have a history of surgical procedures that could have potentially affected their GI tract anatomy, such as fundoplication or Ladd's procedure. * Healthy child presenting to their well child care visit must not report a history of dyspepsia, have a history of any gastrointestinal disease, or be taking any medication that can disturb the GI tract motility.