Luke Combs seems to have it all. Successful career, beautiful wife, great friends and limitless talent. And anxiety believe it or not. Luke recently talked to Dan Rather and opened up about his battle with what's called Purely Obsessional OCD. It makes his brain work overtime about certain things and he has trouble getting off those things. He used his health as an example, "I'll be worried that I'm about to have a heart attack or a stroke. It becomes this very obsessive thing that you never have an answer to. That's the awful part of it. You have to teach yourself to become comfortable knowing you'll never get an answer and that it's a super uncertain thing." Luke's episode of "The Big Interview with Dan Rather" airs tomorrow night at 8:00 P.M. on AXS TV.