Your first question should be, do I feel that something is totally wrong than normal? Last but not least never hesitate about your heart. In august of 07, I experience a heart attack. what I learn was eye opening, most people are very naive when it comes to the heart. First off contact 911. Why? simple, the time wasted trying to make a choice could cost your life. Having a family member drive you to the hospital would be wrong. Medical personnel can respond with correct measures until you arrive at the hospital. My point is, your body has a clever way of telling you some thing is wrong. I found out the hard way, 53 days later after the heart attack I had open heart surgery, a quad. I was only 46 years old.