Noah Kahan opens up about his OCD diagnosis: "It was surprising. I was under the influence of the idea that OCD was like, ‘I need to wash my hands a hundred times.’ But I didn’t realize how much more there was to it. I started putting all these pieces together from my childhood, and these different rituals I’ve had my whole life. It wasn’t just anxiety or being stressed. It was this real insidious disorder that I was struggling with."