The questions tumbled over and over in her mind, but there was no answer.

A thousand questions and concerns tumbled through Adrienne's mind; how much time had passed?

A hundred questions were tumbling over one another to get out.

The more the questions tumbled through her brain, the more confused she became.

The questions had tumbled through Bey's head one after another.

The questions tumbled over one another in their efforts to be answered.

The questions tumbled one after another in her head.

She hesitated, a thousand questions tumbling through her mind.

Jake's hesitation, as these questions tumbled through his mind, lasted no more than a second.

All the questions tumbled in her brain, with no answers presenting themselves.