"I took three or four hits. I laid in bed, and I could not believe the pain slipping away," Carnevale said, recalling the first day he smoked it using a vaporizer. "My pain was like ten. . . . But when I smoke marijuana, I swear it's zero," he said. While he previously spent most of his days in bed, he said he now is able to function and even took a recent vacation with his family, including his two grandchildren.