The previous post about his condition comes from "radaronline" back in February. A lot of people have been suspicious about the tone of the writing, thinking it might be exaggerated. Snopes wrote a response 2 weeks ago, but gave no further details about the extent to which it might be fiction.
At least he was out and about 2 weeks ago, able to give a smile and take a pose, while leaning against a table:
The above includes a video of him from a year ago, and I would not assume his condition is much worse than that.