Just took online quiz...I am lightheaded...Have slight discomfort in upper body...Feel pounding in chest...Breathing is a bit heavier than normal..(I have apnea and use a machine to sleep)...Little to no appetite...Woke up this way and am feeling better...but not great....Heart?...Just a not so good day?
Thanks for your question on Chat Doctor. I can understand your situation and problem. Yes, your symptoms can be due to cardiac problem. Since you are having sleep apnea and using BiPAP machine, you are at increased risk of cardiac diseases. So better to consult cardiologist and get done 1. ECG 2. 2d echo 3.  Stress test 4. Coronary Angiography if required. Possibility of early cardiac failure is high in your case. So first diagnose yourself and then start appropriate treatment.