3. Pain in Other Areas of the Body
The discomfort can spread beyond the chest — to the shoulders, arms (especially the left one), back, neck, jaw, or even the stomach.
4. Cold Sweats
Breaking out in a sudden, clammy sweat without much physical effort is another red flag.
5. Nausea or Lightheadedness
Feeling sick to your stomach, unusually weak, or dizzy may signal that the heart isn’t getting enough blood
