“I did a stunt for a very extended amount of time — for like seven hours — and we thought I broke a rib or just fractured a rib and that was 6-12 weeks of healing,” the actress told Jimmy Fallon on The Tonight Show, detailing the stunt injury she recently disclosed. “So, then, I had 6-12 weeks of chronic pain and just kept assuming that was what it was until I kept seeing the doctors and they’re like, ‘It’s your neck, it’s your neck. It just radiates into these places because of nerve endings.'" Rose says she also couldn't feel her arm for "a long time," adding of learning about her two herniated discs broke the protective layers of her spine and threatened to make her paraplegic: “It was really terrifying. I was like, ‘At least I don’t have an option.’ You know what I mean? I have to do it.” ALSO: Rose says she found inspiration in Vin Diesel in learning to lead the Batwoman set.