Answer:
Pendicarditis or a heart attack.
Step-by-step explanation:
I do not know the answers for this question but here are three possible answers:
Pendicarditis is a condition caused by the swelling and/or irritation to the tissue surronding the heart. It can cause sharp pain in the chest and is nonlethal and usually goes away after a while.
A heart attack has similar symptoms, but also includes pain in the left arm, pain in the left shoulder blade, and upper abdominal pain.
I hope this was able to help you