on your conscience
on (one's) conscience
Causing one persistent, nagging guilt for something one did or failed to do. It's because of your cruelty that your brother died. I hope you have it on your conscience for the rest of your days! I really regret the way I treated her in high school. It's still on my conscience to this day.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
on your ˈconsciencemaking you feel guilty for doing or failing to do something: I’ll write and apologize. I’ve had it on my conscience for weeks.
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