pain nuisance bother annoyance pest tease teaser annoyer persecutor irritant tormentor busybody energizer excitant goad meddler motivator mover prod spur stimulator stirrer bore hassle aggravation inconvenience headache vexation trouble irritation problem peeve drag difficulty irk botheration worry bugbear grief ruffle strain tribulation thorn distress worriment rigmarole palaver rodent creep blighter frustration exasperation schmo baiter harasser heckler trial plague rub bind nark concern anxiety pressure uphill molestation perplexity job flurry bellyache aggro burden torment bane stress struggle agitation menace gall provocation hindrance adversity harassment grievance hardship dilemma unpleasantness load blister predicament labor labour task infliction discomfort issue teasing awkwardness toil challenge