Finally, she was so worked up and nervously strained over the noises that her hearing became exaggerated, and she was troubled by noises that other people would not have even heard; so she managed to keep herself awake all night.
The next day the strain of the overfatigue was, of course, very much increased, not only by the wakeful night, but also by the annoyance which had kept her awake.

The family were distressed that she should not have slept all night; talked a great deal about it, and called in the doctor.
The woman's strained nerves were on edge all day, so that her feelings were easily hurt, and her brothers and sisters became, as they thought, justly impatient at what they considered her silly babyishness.

This, of course, roused her to more strain.

The overcare and the feeble, unintelligent sympathy that she had from some members of her family kept her weak and self-centered, and the ignorant, selfish impatience with which the others treated her increased her nervous strain.

After this there followed various other worries and a personal sense of annoyance--all of which made her more nervous.
Then--the stomach and brain are so closely associated--her digestion began to cause her discomfort: a lump in her stomach, her food "would not digest," and various other symptoms, all of which mean strained and overwrought nerves, although they are more often attributed merely to a disordered stomach.