guilt **
guilty conscience
guilt feelings
guilt trip

Her mother said she must have a guilty conscience about something.

Because he, like the other two, had a guilty conscience.

His daughter appeared to my guilty conscience to be looking through me.

She left it to his guilty conscience to make whatever he wanted of that.

It was a question that came straight from a guilty conscience.

It had to be his own guilty conscience making him imagine things, he thought.

Or was a guilty conscience at work in (1 her?

He seemed to be a thought reader for my guilty conscience.

He can't get off because someone in the jury box has a guilty conscience.

"Or a guilty conscience, is that what you really meant to say?"