you definitely need to see a doctor about this as soon as possible. if you are a woman this could be something benign like costochondroitis but it also could be symptoms of heart attack. many people are familiar with the classic signs of an acute heart attack: crushing or squeezing chest pain that may radiate down the left arm shortness of breath etc. but heart attacks also can last only a few moments such as what you're describing. you don't want to take any chances with this especially if you have other risk factors for a heart attack such as obesity high cholesterol a sedentary lifestyle and so on. please take care and get checked out as soon as possible.
3-5 months hot poker stabbing through chest and out shoulder pain deep breath worsens/spreads 10-15 mins then gone. for the past 3-5 months out of no where i will get intense shooting pain it honestly feels like a hot metal poker is stabbing me through the chest above my left breast through my body and out the back of my shoulder that worsens when i take a deep breath. when i breathe deeply the pain will go from my shoulder and shoot down my arm/radiate around the area where it hurts the worse. this will go on for roughly ten-fifteen minutes. then all of a sudden it will disappear - no pain at all.