can heart burn be a sign of a heart attack

No, but the symptom of heartburn or indigestion can be mistaken for cardiac chest pain associated with a heart attack. Heartburn is a symptom of GERD or gastroesophageal reflux disease.

Heartburn is a burning sensation in your chest, just behind your breastbone. Heartburn pain is often worse when lying down or bending over.

Heart attack warning signs include:
* Sudden pressure, tightening, squeezing or crushing pain in the center of the chest that lasts more than a few minutes
* Mild chest or upper body pain or discomfort — most heart attack symptoms start slowly
* Pain or discomfort spreading to the back, neck, jaw, stomach, shoulders or arms — especially the left arm
* Shortness of breath with or without chest discomfort
* Chest discomfort accompanied by sweating, lightheadedness, dizziness or nausea
* Pressure or tightness in the chest during physical activity or when you're under emotional stress

Hope that answers your question,

Maryann