I have a feeling GRRM is concerned about dying a little more than his fans are concerned of him dying... If there is a legitimate reason to believe he'll die (a

I have a feeling GRRM is concerned about dying a little more than his fans are concerned of him dying... If there is a legitimate reason to believe he'll die (age, obesity, unhealthiness etc) then maybe he doesn't even want to finish the series and enjoy his last years of life doing something else?