My fiance came out of the restroom grabbing his left chest muscle in panic. He was scared he was having a heart attack . He stated as he was washing his hands his left chest muscle began to indent . He said he watched it become incaved as that was happening his heart rate began to increase he claims he felt as though his heart was pumping out of his chest. He could barely talk as he couldnt get a full breathe of air it took him ten minutes for him his heartto slow and his regular breathing to return. Could he have had a minor heart attack? Ive been searching and i am unable to find symptoms that match his experience