The 22-year-old "Cool for the Summer" hitmaker thinks she was numb before seeking treatment in rehab for an eating disorder, self-harming, alcohol and drug abuse in 2010, reported Cosmopolitan.
"When you are sober, you experience everything on a heightened level. If you are going through something stressful, you're extra stressed. I used to sit through a scary movie and not be scared once. At haunted houses, things would jump out at me, and I would sit there bored," Lovato said.
"Then I got sober and I feel everything. I cry more. I laugh harder. Everything.