Please Help ASAP Heart Attack?

My mom recently has been thinking she has had food poising or whatever she ate didn't agree with her. The reason why she thought this was because just yesterday she had diareah six times! She also had a bit of a stomach ache and a head ache but not a severe head ache, (it comes and goes). She was sore but only in her back and her lower stomach and a little bit of her legs.Just today I was in health class and my health teacher was talking about Heart Attacks and their symptoms. I was thinking about my mom today when she was saying symptoms. I think maybe some of them was related to it? Today my mom felt normal like any other day and hasnt felt anything since yesterday. Is it possible she had a minor heart attack yesterday or can she still have one? Please Help! Thanks! And if it helps she doesn't smoke and she doesnt really exercise only when she goes in the pool that's pretty much it! Thanks and should I be worried?