Virtual reality is not new. But, as people search for alternative ways to manage pain — and reduce reliance on pills — VR is attracting renewed attention. Imagine, for a moment you’ve been transported to a sunlit lagoon. And, suddenly, it’s as if you’re immersed in the warm water and swimming. That’s what Tom Norris experiences when he straps on his VR headset. “It’s fantastic, I really feel like I’m there,” says Norris, who is 70 years old, retired from the military, and lives in Los Angeles with his wife. As dolphins frolic and swim by in the virtual scene, “I get a strong feeling of pleasure, relaxation and peace,”…