Justin Bieber wants people to start worrying about themselves and not him. Although the 31-year-old singer has shared vague posts to his Instagram, he seemingly doesn't want people to feel too concerned over his well-being.

Justin Bieber hit back at growing concern over his well-being with a sharp Instagram comment—“Worry about yourself, gramps.” His cryptic posts about love, loyalty, and forgiveness have fueled rumors about his mental health.

Justin Bieber has had some very public struggles in recent years, and several of them have involved issues with his physical and mental health.