Prinzmetal's Variant Angina
Just as a public service, here's a great article on PVA. Unfortunately, much of the material publicly available is out-of-date and thus inaccurate. If you experience chest pain at rest, especially in the night and morning hours, contact your doctor and ask to be checked for PVA. A warning: Since PVA is a rare condition affecting only 4 out of every 100,000 people, many doctors have no idea what PVA is, so you may need to fight the system as it were. Also, multiple examinations may be necessary for proper diagosis. Good luck.