Jack signed some papers, and waited patiently in a corner whilst expelling air with sound; that would make eyes turn in his direction.
Sighing with relief when the nurse called out his name; he was aware of the awful rattling noise along with each breath.
The machine was set, and he was asked to hold still as the MRI was taken.
A loud groan from the technician made him alert.
He inquired in a petrified tone, and was shocked to hear the diagnosis, "You have two marbles in the upper front of the body that clash upon each breath."
In 99 words (no more, no less) write a story about a rattling sound. Join in the fun with CarrotRanch