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.)
Prinzmetal angina Symptoms. The symptoms normally commence at night and rarely occur when a patient is in motion. Interestingly, this type of angina occurs almost at the same time of the day on a regular basis and lasts for 5 to 30 minutes.