((((On the river))))
I do the same thing. I don't act on the instinct that I have to get the heck out of there, I hold it inside. Wonderful repression

!
StrongerMan had a very interesting point. I'd never figured out where that tendency of mine came from. But that totally makes sense. Figuring out when the tendency began, and working with a T, to get through it emotionally ought to help a person through it.
Best wishes to you!