I have a lot of gas and bloating and can easily make myself belch just by pressing in on my midriff with even a very mild pressure or just fluttering my fingers against my midriff. It does seem to release a lot of pressure on something (the vagus nerve?) that seems to cause my heart to flutter a little more. I am doing so as I write this, having woken up about an hour ago with a pounding heart, feeling like I was going to go into afib, sigh. I am trying to figure out how to avoid going into afib. But I do know for me the bloating is connected.