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.
The best way to get rid of it when it happens is to fill your lungs as much as you can, and then bear down lightly like you are pooping. After that it’s gone.
Happens to me about 3x/yr and always has.
Does the turtle have to peek it’s head out?