This started about 9 years ago when I was 12 years old. I saw my doctor, and I said, I have these chest pains... and before I could finish she said, It s gas. Anything else? They come out of nowhere, whether I m sleeping, or driving, or at work. It s extremely sharp and stabbing, and I get this chemical or metallic taste in my mouth. It lasts anywhere from 1 second to 10-15 seconds. When it happens, my heart rate is really irregular, stopping for a 3-5 seconds completely, then beating quickly, seemingly to make up for the lost beats. The irregular heart rate continues for several minutes after the pain dissipates. Sometimes it is so sudden or sharp that I cry out and instantly burst into tears, which is rather embarrassing since I m 21 years old, and the pain usually goes away very quickly, leaving me feeling like a fool. The metallic taste baffles me... Heart disease does run in my family. My great grandfather died at 35 years of age, and my father and grandfather diagnosed.. Haven t seen a cardiologist because my doctor always said I was too young to have heart problems so it was just gas. She refused to talk to me about it. Now that I m 21, I don t have any health insurance and we don t qualify for state medical insurance because even though we make $800 a month in a 4 person household, we own our house and 2 cars.