I'm really worried about some ongoing chest pain I've been experiencing. After a rod hit me in the chest back in November 2015, I had a brief issue with my breathing, which seemed to get better. But then, by February 2016, I started having severe chest pain. I got checked at CMH Narayana Hrudayalaya to see if it was related to my heart, but everything came out fine. This pain keeps coming back, and it's like a muscle pull behind my rib cage. Could this be a problem with my heart or even my lungs?