When you have a heart attack you can have a lot of symptoms such as: Uncomfortable pressure, fullness, squeezing or pain in the center of the chest lasting more than a few minutes. Pain spreading to the shoulders, neck or arms. The pain may be mild to intense. It may feel like pressure, tightness, burning, or heavy weight. It may be located in the chest, upper abdomen, neck, jaw, or inside the arms or shoulders. Chest discomfort with lightheadedness, fainting, sweating, nausea or shortness of breath. Anxiety, nervousness and/or cold, sweaty skin. Paleness or pallor. Increased or irregular heart rate. Feeling of impending doom. Heartburn usually takes place after you eat and worsens when you lie down and usually will go away with antacids. the websites listed below will help a lot. the second answers your ? better than I could.