Hello and thanks for the query
According to the symptoms their is more chances of Ischemic Heart Disease
but it needs to be investigated. Advise her to immediately go for EKG and if possible TMT or Echocardiography
and rule out the disease. In lab investigation you can do heart enzymes test like CPKMB and Trop T. If any thing suggestive of IHD than consult your cardiologist and go for proper treatment.
You have done a good thing by take asprin, thats only the home remedies
you can take for IHD.
In my opinion go to the ER immediately and get your self diagnosed.