Dr. Doctor I'm a 35 year old female and once in a while I get pappitaitons. I saw a cardiologst 3 years ago that told me I was fine. I did an echo, and stress test, also an ekg. Yesturday I went for a physical and everything was great. They even did an ekg. Today I was talking on the phone and my heart was beating very fast and strong for about 9 seconds and then just stopped. I called the doctor and she was off. When I called my cardiologist they told me they couldn't make me an emergency appt. today because now I'm considered a new patient. I made one for 6 days from now with a new cardio. Do you think this is serious?????