Could My Morning Chest Pain And Discomfort From Lying On My Stomach Be Caused By A Bad Sleep Position?

Hi doctor I do feel pain below my chest Sometimes when I wake up in the morning and the pain is obvious when I try to take long deep breaths. I also noticed that whenever I lie on my stomach maybe while watching a movie for like 10 minutes or more I get uncomfortable and feel that pain. However the pain goes away as I take continuous long deep breaths. Do I have a bad sleep pattern or position or what s happening?