Meanings of poor nerves in English

I am cruelly used, nobody feels for my poor nerves.

How weak are these poor nerves; I must rest and recall my mind to itself!

Grandma will attend to things, for my poor nerves won't allow me to come down.

You have no compassion for my poor nerves.

You have no pity on my poor nerves.

She isn't so sensitive and silly, you dear boy, but my poor nerves are responsible for that, you must remember.

Oblige me-youhave been so very good in humouring my poor nerves-obligeme by lifting up a corner of the blind.

Mrs. Coombe accepted these services without thanks, indulging indeed in a little spiteful laugh which Miss Milligan obligingly attributed to her poor nerves.

The New Yorker, May 2, 1977 P. 32 Talk story about letter from young friend who has poor nerves.

Poor nerves, poor heart; it is food you want and wine and rest, and I cannot give them to you.

"Excuse me, papa," she said, "it is too much for my poor nerves.

'Oh no, it was only my poor nerves,' replied Miss Darrell, with her brightest smile.

"You know what poor nerves I have," he said, "and what a wretched sleeper I am at the best of times.