One other option given the history of mental health and medications is a dissociative episode (or fugue).
Many years ago a relative of mine (with MH issues and medications on board) got up in the middle of the night and drove around in their car for hours, before finally being found in the early morning in a different city and completely unaware of what had happened, where they where, how they got there.
They were lucky they were found safe and quickly, but not everyone gets to be this lucky.
Dissociative fugue
Many years ago a relative of mine (with MH issues and medications on board) got up in the middle of the night and drove around in their car for hours, before finally being found in the early morning in a different city and completely unaware of what had happened, where they where, how they got there.
They were lucky they were found safe and quickly, but not everyone gets to be this lucky.
Dissociative fugue