Thank you very much, 2 weeks ago I felt a fluttering on the left side of my chest, after coughing, it happened 4 or 5 times through out the day, I left work and checked my BP, it was 120 /80 w 70 bpm s, So I rested and did not feel it again till just now while singing loudly, although not as long of a flutter, almost like a muscle spasm, lasts a second or two with no pain. No sweating, no dizziness . my blood pressure was also good yesterday.I have a long day tmrw and I wonder if it s cause for concern, I am also fighting a cold for 3 weeks, also I should mention the night before the incident two weeks ago I slept poorly , 2 hours, and had about 3 Irish coffees and 4 beers, which is much more than I usually drink, I am 51, overweight and there is history of heart disease in my Family. What do you think?