The indication was that she had been struck down by some shock.

In examining her he had found that she was underweight.

He wished to discover if she had been secretly working too late at night in her deep interest in what she was doing.

What exactly had her diet been?
Had she taken enough exercise in the open air?
How had she slept?
The Duchess was seriously anxious.
They were the questions doctors always asked people except that he seemed more desirous of being sure of the amount of exercise she had taken than about anything else.

He was specially interested in the times when she had been in the country.