Adjective
Querulous-habitually complaining
The yellow wall paper by By Charlotte Perkins Gilman
I don’t feel as if it was worth while to turn my hand over for anything, and I’m getting dreadfully fretful and querulous. I cry at nothing, and cry most of the time.
The narrator used that word to express how she was getting annoyed and about to complain but she cried started to cry
http://www.merriam-webster.com/dictionary/querulous