maybe it's gas pains? I know that this happens to me A LOT when I have gas. sometimes the pain is just below left breast and sometimes it's elsewhere....but it's very startling and I have to sit down or reposition myself for it to go away.
this is normal. Its probably gas. It happens to me all the time. Ill have a sharp pain in my ribs like something is stuck. And the deeper I breathe, the more it hurts. Its nothing to worry about.