I came back from Vegas with a cough, and it seemed to clear up the next week, but its back again. Not at all as bad as it was while I was away. I did notice that during my first week home, I got this funny sensation in my chest, feels like fluttering, it lasts about 10 seconds and goes away, but this can go on for awhile. It happens during the night, during the day, while I am driving. I have no pain, except a bit of discomfort in my back and also across my chest. But I wouldn't say it was uncomfortable, I just feel that its there. I got scared when I went on line and researched it. All signs point to heart trouble.....could it be that?