The good news is that (other than the pain) it is completely harmless.
The way it always felt to me is like someone wrapped a small wire around something tender in my chest, and if I tried to breathe or straighten my posture, they would yank on it. I’d get it anywhere from a couple times a week to once a month. Then one day in my mid-30s it just stopped.
From what I understand this is relatively common. I was so grateful for the person on reddit who dropped this nugget of wisdom several years ago. It was nice to know I wasn’t dying or whatever.
If you’re able to access primary care they may be able to bill your insurance for an EKG yearly. Wouldn’t catch everything but might notice if you pick up some a-fib or another lowkey issue that might snowball (although the main issue with afib is usually clots and afib clots usually hit the brain not the heart iirc).
Do it if you can. Afib is one of those things that can take years to diagnose, with most people thinking they’re just unfit. Meanwhile, half their heart isn’t working properly …