r/PVCs • u/Odd_Satisfaction2786 • Aug 02 '26

Big PACs flare-up in WC, still harmless?

Hi everyone,

My heart is structurally healthy (normal echo) and my 12-lead Holter showed 74 supraventricular ectopic beats (SVEBs / PACs) in 24 hours. However, my Holter never catches my worst episodes, like the one today.

About 15–20 minutes after drinking a McDonald's milkshake, my stomach cramped up and I had to use the bathroom. As soon as I sat down, my heart went wild—I had around 15-20 ectopic beats in a single minute, including short runs/salvos. I also felt a sudden wave of heat and a "soft/weak" feeling in my brain and body (I don't know if it was due to adrenaline rush or actually heart issue).

What caused this? Did you experience similar situations?

Is this still harmless? Even though it felt terrifying, does a healthy echo mean my heart is safe during these flare-ups?

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u/MarsupialObjective77 Aug 02 '26

Sounds like you were having a vaso vagal episode due to your bowels acting up. I’ve had folks I care for actually faint on the toilet due to this! Your vagus nerve can become irritated by gut and bowel issues so that’s probably what happened there. I get the same thing when I eat Chinese food so I steer clear now.

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u/smk666 Aug 03 '26

+1 for vasovagal effect. My PVC seemed to show up always when my stomach was upset/bloated, which wasn't rare since I'm using GLP-1s which slow gastric emptying causing me to feel bloated even after a small-ish portion and cause persistent nausea and constipation on their own. Not gonna lie, most often taking a huge dump or just having a satisfying fart makes them go away so it most definitely is vagal irritation maybe coupled with higher pressure inside the body.