Hi. My heart seems to be beating irregularly. It beats twice, stops for a second, beats twice again, then stops again for another second, then beats for more than 10 times and then stops again for a second. I noticed this only this morning. I ve also been feeling tired. The last week I have had more cups of coffee than normal. The previous week I was under stress. This week though, the stress period has let up and I am now in relaxation mode. I am 44 years old and have normal health. I would appreciate any advice. Thanks a lot.