A person fainting for half a day or a day, especially after being busy for a period, is usually seen as caused by overexertion. It's within the normal range, and a bit of rest will suffice.
But if a person faints for three consecutive days.
This arouses concern.
The old lady sent people to inquire several times.
The doctor could not provide any answers, feeling completely helpless.
You'd think if there were some ailment, at least there'd be some symptoms. With no symptoms, how could the doctor start treating?
But a response must be given to the old lady, and the Princely Heir's order must be followed by saying externally it's due to exhaustion and will be fine after a few days of rest.
Yet whether it can be fine, or when it will be fine, the doctor can't say for certain.