Symptoms of heartburn

Gastroesophageal reflux disease (GERD) occurs when stomach acids back up into the oesophagus.
The US National Institute of Diabetes and Digestive and Kidney Diseases mentions these symptoms:

* Having heartburn.
* Tasting stomach acid or food in the back of the mouth.
* Having bad breath.
* Feeling nauseated, or vomiting.
* Having difficulty breathing or swallowing.
* Wearing of tooth enamel.
— HealthDay News