"microvascular angina"

Things to Check When Your Chest Feels Tight and Breathing Is Difficult

Have you ever suddenly felt your chest grow stiff and tight, making it hard to breathe on your subway ride home from work or late at night while working overtime? That frightening moment when the center of your chest feels completely blocked and constricted, making your heart sink as you wonder if something terrible is happening, is an experience many share. Are these symptoms simply because you are tired?