Your parents are probably out of their mind with worry too.

I think some days my heart will break with worry.

Poor thing, she's probably out of her mind with worry.

"I have been out of my mind with worry about you!"

She took time to study him, green eyes cool with worry.

Though half sick with worry, he did as she wanted.

A later date when he wasn't half out of his mind with worry and fear.

The children seemed fine, but some of their parents were sick with worry.

Years ago I used to get beside myself with worry about my weight problem.

He was clearly sick with worry about me getting killed.