What does it feel like when having a heart attack?

Heart attack: Chest pain, shoulder pain, jaw pain, chest heaviness, suffocation, shortness of breath, left arm pain ad tingling, and sometimes no symptoms or minor symptoms. When in doubt, see a doctor.

Classic: Usual sub-sternal crushing severe durable sustained, anxiety producing, with clammy skin, pallor and radiation to left upper arm with a squeeze. Much variability!