Re: Heart does a weird flip-flop out of the blue... Help!
I know exactly what you're talking about because I also get the symptoms you described from time to time and I too explain them as a "flip flop" sensation. These sensations are palpitations, but what the heart is actually doing during these episodes is unknown to me. They may be skipped beats, extra beats, a flutter, fibrillation, or something else, but I know how frustrating it can be trying to articulate these symptoms to a doctor. I noticed sometimes when I change my positions, like bend over, it triggers the flip flop sensations. I too had tests and the doctor found nothing except tachycardia and mild mitral regurgitation.