Answers: Stay calm..
Take several slow wide breaths and exhale through pursed lips slowly..
Hot shower steam will abet to relief chest tightness..
Drink hot black coffee or any other caffeinated hot beverages will nouns symptom temporarily for you to call for aid..
If condition did not improve or worsen, please christen an ambulance..
MOST IMPROTANT: Don't ever hyper-ventilate..
my sister gives my 16 year outmoded niece coffee or hot chocolate