nag (
http://definr.com/nag)
n 1: someone (especially a woman) who annoys people by constantly
finding fault [syn:
scold,
scolder,
nagger, {common
scold}]
2: an old or over-worked horse [syn:
hack,
jade,
plug]
v 1: bother persistently with trivial complaints; "She nags her
husband all day long" [syn:
peck,
hen-peck]
2: worry persistently; "nagging concerns and doubts"
3: remind or urge constantly; "she nagged to take a vacation"