Michael Douglas: Sagging Beach Body At Sea

Michael Douglas has hit the high seas with wife Catherine Zeta-Jones — showing his age as new concerns rise over his health! The star seemed to be enjoying time with his family while starting to fill out his thin frame. Sadly, Michael's recent red-carpet appearances had shown his looking alarmingly frail, with friends saying they're worried about cancer returning to ravage his body!

“Michael’s health is always a big, dark cloud looming over his family,” said an insider — with this photo of Michael in October raising new concerns! Michael's representatives continue to deny that the cancer he beat six years ago has returned to attack another part of his body. Fans were still shocked by his appearance at the World Celebrity Pro Golf Tournament!

Michael's rep insists that he was healthy enough to play in the celebrity golf tournament, but Dr. Jerome Spunberg — a Palm Beach Gardens, Fla., radiation oncologist who has not treated the star — spotted signs Douglas may have relapsed. Checking recent photos, Dr. Spunberg says Douglas’ eyes appeared inflamed, a common side effect of radical therapy, and “he doesn’t look like a healthy guy.”

The National ENQUIRER broke the news of Michael’s cancer battle when a walnut-sized tumor was discovered in this throat six years ago. He underwent eight weeks of chemo and radiation therapy, which licked the disease but sucked 30 pounds from his frame. He recalls his docs chillingly warning him, if the treatments hadn’t worked, “you may have to have surgery and you may not have much of a film career” because they would “have to remove part of your jaw!”

Michael also recently made headlines while talking about his former costar Val Kilmer — who's also been constantly denying his own cancer crisis after The ENQUIRER's blockbuster exclusive on a deadly throat tumor! The "Wall Street" star originally said that he was praying for Val, adding that it "didn't look good" for the former Batman. Then he later apologized to Val — with Michael's own reps now also insisting that their client is fine!