Hi Casper - Glad to see you back. But also, not so much (because I know it means you're having mroe symptoms).
Neil (a member here) has mentioned these really big
PVCs, too. The thing about
PVCs is there's a finite "size" they can be. Your hearts atria and ventricles can only hold so much blood, and your heart's valves prevent it from being able to overfill.
That being said, here are the only two things I can think you may be experiencing:
1. Esophageal spasm. I've had a few of these (or that's what I've hypothesized it is), and to me they feel like a small explosion in my chest. Like a firecracker. Big thud, a brief bit of pain. I got one recorded on my event monitor and it was clearly something muscular because the
EKG strip picked it up as a huge electrical discharge, but it was also clearly nothing to do with my heart, because the rhythm of my heart was completely unchanged before and after, all waves (P,QRS, T) were all as they should have been.
Now you know I've had millions of
PVCs, so I know where they are in my chest, I know how they feel. This felt like that, and in the same place - only WAY bigger and more violent.
2. A run-of-the-mill
PVC, but it came after a short burst of
PAT. So your heart was beating really fast, low volume per stroke, and then it reset itself and gave off one, big
PVC, which is what you felt. and it felt stronger because of the fast rate and low output from the moments before.
Just try to keep in mind that your heart's valves and thick muscle tissue won't allow it to have a heartbeat any bigger than it's capable of having.
Hope that helps.
Jeff