CaluseS of dissatisfaictiom -
sins
Negative causes of dissatisfaction are really Worse.
A fit of nerves.
(a nenons Tate).
Many soldicrs suffer a fit of nerves in war.
possesS nerve steel
unpentturbable
Gircat men possess nerves of steel.
To get on one's nerves
get on his nerves.
your voice is really getting on my nerves