Weakness
Do you feel very breathless when climbing stairs and feel fatigued even without making a great physical effort? This may be due to a failure to pump blood to the body, which impairs the work of the muscles, the lungs and causes tiredness. Because the body is under extreme pressure and because it has the possibility of some kind of dizziness or fainting, weakness is one of the most characteristic symptoms. A person with a heart attack is often unable to hold light objects with their hands, such as a sheet of paper.