I have been experiencing chest movements in sternum area it can be flutters. sometimes like it takes my breath away. Like an awe moment. it will beat fast then stop and do it again mostly at nite. I am taking Nifedipine, coreg, metformin, diovan w hctz and potassium. At the moment I feel okay. I experienced about 30 minutes ago, and has been going for about a month. December, 2013, I had an EKg and October I had chest exray.