I apologize about resurrecting an old thread like this but this is the first time I have found others discussing a problem I have been experiencing for the last year (and about which my GI doctor says is impossible). I have issues with tachycardia after eating, most of the time low level...maybe 100-110 bp. If I eat too much, I have had much worse, to the point I had an ambulance at my home twice when it spiked over 180bp. I have an implanted heart monitor (for a minor stroke last year) and I have had my cardiologist look at all the data and they have said other than the tachy episodes, everything looks fine.
That is when I started to do my own research. Most of the time I can feel an episode come on, it happens an hour to two hours after eating and it feels like an adrenalin rush for the worst cases. I can feel an energy in my chest that radiates out to my limbs and I know I have little time to lay down before my pulse spikes. Laying down keeps the my pulse from spiking as high and helps manage the anxiety.
I started believing it was food related because I pretty much always feel bloated during that time, as well as having a large amount of gas. Once I realized this I started controlling my portions better (most of the episodes would happen on Sunday evenings when I would typically eat my largest meal of the week), and because of this have had far fewer attacks and those I have had were not as bad.
My cardiologist went ahead and proscribed me a low dose beta blocker and even though I sometimes feel a bit weird like I am starting to have an attack, I have not actually had one and my pulse hasn't been above 100 after eating since. I have not been able to pinpoint exact foods or types of foods. I have had issues with breads or breaded foods, but then at other times have not. The same with spicy foods, other carbs, etc.
Honestly my first thought when I started going through this was something like Graves disease but from my observations, and what I have read on here it is really sounding like a GI issue. Any advice on talking to my GI doctor and getting him to understand that this is a real thing and not just my imagination?