text: As every one has mentioned that Infarc is a term for heart attack. It can be mild or major. If they sent you home then chances are that it was an old infarc and that you had no clinical indications for being there, HOWEVER IF YOU ARE CONTINUING TO EXPERIENCE SYMPTOMS YOU NEED TO BE RE-EVALUATED. a blood pressure of 74/45 is cause for major concern if you do not normally have low blood pressure. You need to be seen and followed by a cardiologist.  Saying that it was no big deal is WRONG. Especially at 35. \n\nYou need a full work up including laboratory, stress test, and possibly cardiac cath (if testing shows nothing but a possible old MI INSIST ON THE CARDIAC CATH, my best friend was 33 with some cardiac issues considered minor. she had a thallium stress test that revealed nothing, a week later she had a Major MI at work that she did not survive. She was an ER nurse and she died at work.  Nothing they did could save her. Had she insisted on the cardiac cath she might be alive today.\n\nNow you could be having panic attacks that are exacerbated by fear. Perfectly natural, but chances are that you really do need to be re-checked.