ELI5: why do things seem more stressful when you finally get to a safe place?

r/

I grew up in a hectic environment and used “it is what it is” for a lot of Awful situations, and that was enough to keep chugging along. Now that I’m out of that space, and it’s close to impossible to get sent back there in any feasible way, I start bursting into tears over things like not being able to eat my favorite food three days in a row. That usually feels worse because I know I’ve been Through worse, and I don’t know why my brain is categorizing these things as “We’re under attack” when they’re, like, low stakes things