Side effects - Heart attack while rolling?

[cb]

a friend of a friend of mine was telling me a story, about how she went rolling, only a couple of weeks ago, and mid way through her roll she felt severe pain down her left arm, then her heart started to hurt. she stayed calm and thought about calling an ambulance but after 20 minutes the pain subsided. She and another friend of mine went for a walk and the pain ca,e but but then subsided again. My friend was wondering could this have been a heart attack or something of the sort?
She had only take one pill and wasnt doing any strenuous excercise other than the walking.
thanx