Sour milk.

She walks to Three Corners Market. 

An unseen sludge of mud;

a slip, a fall—
PAIN!

Ice helps;
Not enough.
"I'll wait for you in the car"

1 hr. @ Urgent Care.
Tedium at Emergency.
Inconclusive X-Ray.
Cloudy CAT Scan.
Inconclusive.

9 hours later, 1am, sleep.
This morning?
I'm guessing:
PAIN!

I'm off to fill her prescriptions

And get fresh milk.