Do not neglect the symptoms of new or recurrent chest pains, uneasiness or fullness in chest as acidity.
Any pain above the navel to the chin and along the arms could be heart pain.
If the pain is unbearable, lasting more than 10 minutes, associated with nausea, sweating or vomiting, then it is most likely because of Heart Attack (Myocardial infarction).
Incase of suspected Heart attack or MI (Myocardial Infarction)
Call the ambulance immediately and rush to Emergency or the nearest Cardiac Hospital.