torment    gukēkeza, gushinyagurira
En-En dictionary 
grief    umubabaro, amaganya, agahīnda
(to be in) kuganya, kuganyira
(to torment oneself with) kwīyambagura
En-En dictionary 
kwīyambagura (-īyambaguye)     v    1. to torment oneself with grief, 2. to try to find food for unexpected guests
gukēkeza (-kēkejeje)     v    1. to torment, 2. to deceive, 3. to rejoice in another's troubles