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You may not have any noticeable symptoms of a coronary artery spasm. If you do, you might feel light chest pain, especially pain that occurs:

  • During rest, often after midnight or in early morning hours.
  • On the left side of your chest.

A coronary artery spasm may wake you up at night. You may have spasms as infrequently as a few times a year or as often as a few times a day.


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