My side still ached from where I had fallen on the wheelbarrow.

Later, she told Beryl what she'd heard and they laughed together until their sides ached.

At first we laughed until our sides ached, but in reality it was no laughing matter.

His side was aching, but it receded into the background.

The left side of his face ached, as it always did in cold wet weather.

Their sides ached with the laughter, but still they did not stop.

My side ached as if it were on fire.

Her side ached; it felt like more than one broken rib.

My side ached and there was a weakness on me like I'd never felt before.

Her side was aching by the time she found the old gnome.