How can you tell the difference between gastric and heart pain?

In gastric pain, you might experience burning in the chest. This burning sensation begins in the upper stomach and follows up to the chest. Gastric pain occurs due to acid reflux in the body. While in heart pain, you might feel pressure or fullness in the centre or left side of the chest. Heart pain occurs when a part of your heart muscle cannot receive oxygen and dies. This is the difference between gas pain and heart attack.