Crushing pain in the chest area. Like an elephant sitting on your chest. NOT SHARP PAIN
Pain down your left OR right arm.
Pain into your jaw.
Blue tinge to lips.
Pale, flushed skin.
Tremors in the hands.
You can have one or two symptoms or all of them. But the most common is chest heaviness and pain in arm
If you ever have any of these symptoms contact emergency service straight away.