I was eating pork ribs tonight and accidentally swallowed a flat piece of bone (probably a couple of centimeters wide) that had flaked off. Since then, I ve had pain near the middle of my breast bone. I ve been drinking water and ate a piece of bread. I m swallowing fine, no vomiting, etc., just have the pain in my chest . I ve been burping a lot though, which intensifies the pain. Should I be concerned?