Contrary to what some say, your small heart and your regular-sized heart act the same way. (cue the rim shot) Women tend to present with more atypical symptoms than men. Almost always is a sense of shortness of breath. Other symptoms may be a profound sense of fatigue, chest tightness, jaw and/or neck discomfort, shoulder, arm, mid scapular discomfort. Many people will say that they are not feeling true pain. There may also be pallor, a cold sweat, nausea and/or vomiting, and a sense of impending doom. Another consideration is your risk factors. Early family history for heart disease (heart attacks, open hearts, heart caths only - not arrhythmias or valve problems), high blood pressure, diabetes, high cholesterol, and smoking are the big five. If you are a woman and under 40 then you would need to have nearly all of the risk factors to actually have heart disease/heart attack. If you are at menopause or later in life a couple of factors would be enough to be concerned. I hope this helps.