Stretch marks are long, narrow streaks, stripes or lines that develop on the skin and which differ in hue from the surrounding skin. They are the result of a sudden stretching of the skin and are extremely common. Anyone can develop stretch marks, although they tend to affect more women than men.
Prinzmetal's angina is a form of unstable angina, meaning it usually occurs at rest, between the hours of midnight and early morning, and there's no predictable pattern to bouts of pain. (This is in contrast to stable angina, which is predictable pain caused by exercise or exertion.)
Angina is pain, discomfort or pressure in the chest, and doctors usually describe it as chronic stable angina or unstable angina. Chronic stable angina. Chronic stable angina is a form of chest pain that happens when your heart is working hard and needs more oxygen, such as during exercise. The pain goes away when you rest. In chronic stable angina, the pattern of chest pain is consistent, or stable, as far as how much physical exertion will trigger it.