I was diagnosed 28 years ago with mitral valve condition. I chose not to go on any meds and have just dealt with it. I m 56 now. I have more frequent episodes of rapid, irregular and skipped beats. Now they include feeling lightheaded and very tired before/during/after. And I have this daily cough that I don t know if it s related or not. These episodes seem to have no trigger. I can be resting, active, relaxed, irritated - basically they are just random. I haven t been to Dr about it. But during dental work procedure, they had to stop the procedure, call 911 - because my heartrate went to 256 beats per minute. They gave me some med & oxygen and got me awake. So I thought that might have been related to meds they used. All other episodes have been random. So I guess it is just progressing due to age, but wondering if this cough is related to all this or not. Thank you