Quotation from: The Valley of the Moon

Written by: Jack London

CHAPTER XV

All that night Saxon lay, unsleeping, without taking off her
clothes, and when she arose in the morning and washed her face
and dressed her hair she was aware of a strange numbness, of a
feeling of constriction about her head as if it were bound by a
heavy band of iron. It seemed like a dull pressure upon her
brain. It was the beginning of an illness that she did not know
as illness. All she knew was that she felt queer. It was not
fever. It was not cold. Her bodily health was as it should be,
and, when she thought about it, she put her condition down to
nerves--nerves, according to her ideas and the ideas of her
class, being unconnected with disease.