Angina

retro-sternal pain, which may start suddenly or build up gradually

pain is usually described as moderate to heavy pressure or squeezing

pain may vary from just a discomfort to very severe

pain may radiate across the chest, into the left or right arm, up into the neck or jaw, or into the back

may show as a feeling of indigestion

pain usually lasts 5 minutes, rarely more than 15 minutes.

pain is relieved within 5 minutes by rest, medication, or both

pain will not be influenced by changing the rate of respiration, coughing or movement