Heart Attack
The shortage in blood supply to the coronary arteries may cause heart problems like chest pain and heart attacks. [5] At the onset of a heart attack, there is a myriad of signs – ways through which your body hints you about what is to come. The early signs of a heart attack include: chest pain, neck pain, shoulder pain, jaw pain, lightheadedness, fainting, sweating, nausea, shortness of breath, and upper abdominal discomfort.
Abnormal Breathing
This symptom may be caused by Tachycardia or Atrial fibrillation. Tachycardia is not caused by underlying diseases. It is triggered by intense emotions such as fear, anxiety, stress, anger or love, and may occur when performing high-intensity activities like exercise. [6] Atrial fibrillation is a heart disorder where electrical discharges from the heart’s muscles cause the ventricles to contract irregularly and rapidly. The abnormal speed does not allow the arteries to fill up with adequate amounts of blood for pumping.