The possible condition that she may be experiencing would be:
Angina Pectoris
<span>This is a medical term for chest pain or the coronary heart disease, it happens when there is not enough blood received in the heart muscle. The symptoms that you would typically experience with Angina would be the pain at the center of the chest or uncomfortable pressure. </span>
If you don't recognize early signs of stress you might: 1. Feel completely miserable, 2. Be irritable, 3. Get things such as cold sores.
Hopefully this helps :)
