After I eat I get heart palpations that will start while I am sitting and will remain for hours (2-4) after eating even if I am up and around. It seems that if I get up after eating and remain up that the palpations do not seem to be a problem. I also have severe bloating in my upper abdomen and have had that for at least 8 months now, even when I have not eaten a lot. I am soon to be 47 and have hypothyroidism, but otherwise healthy except for being overweight.
I'd be curious to know your age; severe bloating and heart palpitations are just a couple of the mass symptoms of peri-menopause...