Achalasia is an esophageal motility disorder that is commonly misdiagnosed initially as gastroesophageal reflux disease. Patients with achalasia often complain of dysphagia with solids and liquids but may focus on regurgitation as the primary symptom. leading to initial misdiagnosis. Diagnostic tests for achalasia include esophageal motility testing. https://www.roneverhart.com/Dr-Squish-Squishy-Refill/