I will answer yourquestion here but I would also like to know how you made out today?
Please remember that I am not a Dr. - "Abnormal ECG", possible lateral infarct, age undetermined."
It appears that you ECG of your heart had some noted abnormalities picked up by the Dr. who interpreted you test. This Dr. feels your ECG may indicate you had a heart attack at some time in the past but he can not determine how long ago or definitely state that you absolutely had a heart attack.
It is not all that unusual for someones ECG to show a possible old heart attack - in fact our own ER Dr. had this very same thing happen when we ran his ECG prior to a minor surgical procedure. He had never been hospitalized for sx of a heart attack.
Again remember I am not a Dr.