The star bowed out from the ITV1 show nearly a year ago after a decade fronting the programme.
Speaking to Reveal about how her life has changed since then, Britton explained: "I'm having a ball. I'm behaving badly and enjoying life. I've been sleeping quite a lot.
"I feel great and people have said that I look well. Bradley Walsh came up and said, 'You look great - have you had some work done?' I was like, er, definitely not."
She added: "My husband Phil has enjoyed the fact he doesn't have to look at my diary and worry if I'm in or out."
Recent reports have suggested that Britton is in talks for more television projects.