Acid reflux is a condition where stomach acid travels up and into the throat. Usually the main symptoms are a burning feeling in the chest, which is heartburn, and a sour taste in your mouth or the back of your throat. You may also experience bloating, burping or prolonged coughing and sore throat.
Acid reflux and heartburn are usually triggered by something you have eaten. Foods with high quantities of garlic, onion, spice, citrus or tomatoes are common triggers, although these vary from person to person. Eating within a few hours of going to bed, eating too much and lying down after eating can also cause an acid reflux flare up.