Doctors says its possible that the left side of my heart isn't getting enough oxygen. why would this be? and is there treatment for it?

Heart: It is possible that the left side or main pumping chamber of your heart is not getting enough blood and the most likely reason for that is a blockage in one or more of the arteries on your heart. There are several ways to test for that such as and ekg or a stress test or a ct scan or MRI of your heart. Treatments vary depending on the severity and number of the blockages.