niggle
niggle verb uk/ˈnɪɡl/ us[ I,T ] to worry or annoy someone slightly for a long time
изводить, надоедать
a niggling injury niggle about/over, etc UK
to complain about things that are not very important
ныть, жаловаться на что-либо
She kept niggling about the extra work. niggle noun [ C ]
жалоба