Hi my name is Noeen, 50 years old female. have cardio myopathy for last 15 years. my EF improved form 25% to 50%. a year ago i had two stents done. Recently i am having bad palpitations. went to ER few times and they said tests are fine. For last three days, i have chest pain, feel like nail in my left shoulder, heart beat around 97 and i feel bad palpitations and cough. Don t know what to do, I had two heart attacks & did t know when. please advise me.