Fluttering Heart forcing cough?

This might sound really strange
but for the last 4 days it feels like my heart is fluttering, IF it IS my heart, it makes it feel like a little fishy is flipping around right at the base of my throat, like the pressure of my blood is being squeezed in spasms through this area, and this causes me to cough, as if the air is being pushed out of me. Does this sound like anything anyone here has heard of? Being that it's been over the Christmas holidays and my family doctor's clinic has been closed, I didn't want to waste hours waiting in the hospital ER when it may be nothing. I am going to the doc Monday to have this checked out but I was hoping maybe someone here might be able give me a clue as to what this could be. Thanks. :)

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