If you hadn't been here, I should have gone off my head!

I'm not the sort to go off my head.

That's what makes me think he's going off his head.

His first idea was that the old lady had gone off her head.

It was a hard search, so I seem to have gone off my head.

"I think that you have finally gone off your head," he said angrily.

Red looked at Jake as if he had gone off his head.

I was shocked to learn that poor Smith had gone off his head.

If you think about it long enough you'll go off your head!

He went off his head and tried to kill me.