go over something in your mind

go over (something) in (one's) mind

To think about something, perhaps to understand or make sense of it. I've been going over our exchange in my mind, and I still don't know what I said to upset her so much.
See also: mind, over

go over something in your ˈmind

think very carefully about something that happened to you: I go over that terrible moment in my mind every day.
See also: mind, over, something