turn something over in your mind
turn (something) over in (one's) mind
To think about something continuously; to give something one's close and undivided attention. I've been turning over the problem in my mind for days, but I still haven't figured out a way to make the numbers work. You're going to drive yourself crazy if you keep turning over that encounter in your mind—you just have to let it go.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
turn something over in your ˈmindthink about something, for example an offer, a plan, etc., very carefully before you make a decision: I’ve been turning over the job offer in my mind all weekend. I really don’t know what to do.
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