OK, back in town and reading that some of you may have something triggering heart. It's not unheard of for the esophagus or stomach, or even the lower gut to trigger the heart to react. As Chutz said, they're connected by the vagus nerve. If you go up to the search box you can type in food logs or trigger foods and find some of the older discussions.
My story is, briefly, I found that the cause of my tachycardia and my stomach refluxing was eating foods with ingredients to which I have sensitivity/intolerance, or as my allergist calls them, allergies. She had me keep a journal/log of everything I ate and drank, all meds, etc. with times and reactions an hour and two hours later. (People who react with a migraine have to look back as far as two days.) I had to separate the foods into ingredients and do "challenge testing," but I would NOT recommend that anyone else do this unless under the guidance of a physician!
I came up with a list of foods and drinks like wine and beer and sodas. It was pretty weird because I could eat a waffle, but not the maple syrup. I could eat a hamburger, but not the condiments. I googled my list with the words "food allergy" and "food intolerance" and came up with sulfite intolerance. When I avoided foods that are known to be high in sulfite, but not just containing it, my stomach stopped jumping around (my personal definition of refluxing) and I stopped having bouts of arrhythmia (tachycardia for me).
I have since read several medical journal articles about
"linked angina," aka cardio-esophageal reflex. It can get so bad it triggers, in turn, cardiac artery vasospasm. I had that too.
It's also nice to know you may be able to stop the arrhythmia by doing "Valsalva maneuvers." Take a breath, bear down like on the john. A cough can stop it too. But if you think you have these problems I recommend seeing an allergist and also your cardiologist. I have a handy prescript
ion for atenolol which I can chew up, and have needed, from my cardiologist.