* Sour or bitter taste in the mouth
* Regurgitation of food or stomach contents
* Chest discomfort
* Nausea
* Difficulty swallowing
* Chronic cough
* Hoarseness
* Throat irritation
Not everyone with GERD experiences classic heartburn.
## Why Does Acid Reflux Happen?
Several factors can make reflux more likely.
### Eating Large Meals
A very full stomach creates more pressure, which may make it easier for stomach contents to move upward.
### Lying Down Soon After Eating
