Other forms: naggingly
Something that's nagging really bothers you — whether it's your nagging older sister, reminding you to take out the trash, or a nagging headache that lingers all day.
A nagging boss might continually complain about your work — you could also describe her as "overcritical" or "faultfinding." When a physical pain or discomfort is nagging, it's just as disagreeable, tormenting or irritating you in an ongoing way, like a nagging pain in your lower back. The source of nagging is nag, which originally meant "gnaw or bite."