Hello and thank you for using HCM.I carefully read your question and I understand your concern. I will try to explain you something and give you my opinion. If you been diagnosed whith infarction this means that you have problems whith your coronary arteries.Having blockage in the arteries can cause an infarction manifested whith chest pains. If you continue to have chest pains it means that your heart is soffering becouse its not supplyed normaly whith blood becouse of this blockage.And this think should be resolved. Having low heart rate might be a complication of ischemic heart desease.Slow heart rate doest couse pain, but coronary stenosis cause heart pains. So, my opinion is that you should seek medical contact and have your self closely monitored, whith cardiac echo, electrocardiogram, cardiac enzymes and after they resulst decide what to do next. Hope I was helpfull. Best regards,Dr.Ervina.