Chest pain and untreated sleep apnea untreated osa is a risk factor for problems with the heart that can cause chest pain. It s best of course to go see your md to be sure and the previous poster wasn t wrong in suggesting that lack of oxygen can impact almost any part of your body so look into finding out what. Pin On Exercise Lord Help Me Preparing for your appointment. Sleep apnea sore chest . Thus it wouldn t be surprising if someone with bouts of nighttime chest pain is found to have both osa and one of the three cardiac conditions mentioned above. Once that s out of the way we can start to look at links between sleep apnea and the pain. Chest pain raises a big red flag and you should think of it as an emergency. Thanks for sharing about how this pain in your breastbone which goes up into your chest and at times down into your stomach is accompanying your newly diagnosed sleep apnea and how your sleep doctor indicates it may improve with the new breathing machine the ...