the.com/dissociation
When the mind quietly leaves the building but forgets to tell you.
means A mental disconnect from your thoughts, feelings, memories, or surroundings, ranging from mild zoning out to clinically losing the thread of self.
from From Latin dissociare, to separate or disunite — dis (apart) plus sociare (to join), the literal undoing of a partnership, in this case yourself from yourself.
Highway hypnosisDriving miles with zero memory is mild dissociation.
Survival modeThe brain dissociates to dodge unbearable trauma.
Spectrum thingRanges from daydreaming to dissociative identity disorder.
Body includedCan feel like watching yourself from outside.