You should
stop taking spicy food, vinegar, alcohol, cigarette
smoking if present. A 24hrs gastric pH and urease breath test with upper GI endoscopy will help to substantiate diagnosis.
Antacids and proton pump inhibitors will reduce the acidity for which consult a physician.
The other possibilities are hyperplastic tonsil, abnormal upper esophageal sphincter function, stress or psychological abnormality causes this sensation due to altered upper esophageal pressure.