Grief is a related term of pains.
As nouns the difference between grief and pains
is that
grief is suffering, hardship while
pains is .
As verbs the difference between grief and pains
is that
grief is (online gaming) to deliberately harass and annoy or cause grief to other players of a game in order to interfere with their enjoyment of it;
especially , to do this as one’s primary activity in the game while
pains is (
pain).