Courtney Love is opening up about a terrifying health battle that almost killed her. The rocker, 62, recalled going to the UK in 2019 and said her body “just exploded” in an Instagram video she posted Friday. “It just exploded, and I was in hospitals a lot. I almost died,” she alarmingly shared. “I lost all my hair,” she continued. “I was about 100 pounds, and they told me I was going to die, and I didn’t believe them.” The Hole frontwoman attributed her reluctance to listen to her doctors to an attitude she’s had since childhood. “I used to like, pattern-interrupt the adults, and they’d tell me ‘red.’ They’d say ‘red was blue,’ and then…