feeling great sadness especially because of unfair treatment

very distressed

(of a hen) wanting to brood

gloomy

(of a person) sad; depressed; (of eyes) looking downwards (especially with sadness, shame etc)

depressed, unhappy

(of a person) (kept) poor and treated badly

afflicted, abused

(literary) unhappy

hopeless, inconsolable

having (a lot of) weight; difficult to carry or move; of more than usual size, amount etc

having great weight

carrying a large number (of something)

loaded down