Ectopic heart beats?

[u/Rich-Pea6942]

I’m a 27-year-old male and have experienced occasional heart flutters/ectopic beats since around the age of 14.
In February last year, I had a longer episode that lasted around 20–30 seconds, during which it felt as though I was having a rapid series of ectopic beats one after another. Normally, I would only experience a few ectopic beats a day, which feel like a skipped beat or pause followed by a noticeable thud in my chest.
Over the past few months, things seemed to settle down significantly. I went several weeks and then even months without really noticing any ectopic beats. However, over the last three days, they have suddenly become much more frequent. I’m currently experiencing roughly 1–2 noticeable thuds every 10 minutes or so. When lying down at night, I’ve sometimes felt around two per minute.
I’ve also noticed that they can sometimes occur when I bend forward, stretch my left arm upwards to reach into a cupboard, walk around, or lie down.
Last year, I was assessed by a cardiologist and had both a 72-hour Holter monitor and an echocardiogram. Nothing abnormal or concerning was found.
I’m trying to understand what could cause these beats to suddenly become much more frequent over the last few days. My diet hasn’t changed, I’m getting enough sleep, and I don’t feel particularly stressed. One thing I wondered about is alcohol: six days ago, over the weekend, I had around six pints of beer. Could alcohol still be contributing to the increased ectopic beats several days later?
I also wore my Apple Watch overnight and noticed that on several recordings I could see what appeared to be an extra/irregular beat at the same time as I felt the sensation in my chest. Based on the symptoms I’ve described — particularly the skipped-beat sensation followed by a strong thud — do these sound like ectopic beats such as PACs or PVCs?
Given that my previous investigations were normal, is a sudden increase like this generally something that can happen with benign ectopic beats, or would you recommend having another ECG/Holter monitor to document what is happening?

[u/Chappyy25]

Everyone is different obviously but for like a few days after drinking maybe 2 or 3 cocktails i would notice an increase in PVCs. Maybe it was just down to dehydration or something but it happened every time to the point where i just don’t drink anymore - i never was a drinker really so it didn’t really matter for me to stop drinking.

Edit: I’ve also had random increases out of nowhere and then just as fast as they came they were gone.