Avril Lavigne contracted Lyme disease from a tick bite, which left her bedridden for months with extreme fatigue, joint pain and night sweats. During her darkest moment, she felt like she was dying, lying in bed with her mom and struggling to breathe. This harrowing experience inspired her song "Head Above Water," and she credits writing it with helping her cope with the illness. Lavigne has since become an advocate for Lyme disease awareness through her foundation