Perhaps unsurprisingly, I experienced a similar issue with chest pain at my last employer, freaked out and took a day off to visit a hospital. My parents talke

Perhaps unsurprisingly, I experienced a similar issue with chest pain at my last employer, freaked out and took a day off to visit a hospital. My parents talked me down from thinking it was a heart attack, so I didn't go to the ER but ended up talking with my general practitioner the next morning. He suggested that it might be due to stress-induced inflammation at rib cage joints.