What exactly does it feel like when you are having a heart attack?

Sxs: Heart attack sx can include: chest pain or tightness, shortness of breath, increased sweating pain or numbness radiating down the arm (more often left than right) and nausea. There could be pain in the upper back, head, jaw or teeth. One fourth of people have heart attacks without chest pain.

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!

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!