Heart attack, Angina, or Acid Reflux?

Before I head to the emergency room, I would like to know anyone who has experience one or all of them.

My symptoms:

Nausea and mild stabbing pain in chest
Burning in left breast
Left arm is achy
Upper left back is achy
Lower right back is achy
Cramps in abdominal area
Cramps in left side
9 answers 9