‘Good Morning America’ anchor Robin Roberts on illness: ‘I’m not feeling too well’

"Good Morning America" anchor Robin Roberts is taking time off because she's feeling the effects of her blood and bone-marrow disease.
Recently diagnosed with myelodysplastic syndrome, or MDS, she made the vacation announcement Tuesday on the morning show.

"Well a full disclosure here, I'm not feeling too well," Roberts said at 8:08 a.m. "In fact, I'm going to leave, and let you all do the rest of the program on your own. I'm going to take a little time off, just to get some vacay. I'll see you in a couple of weeks."

Appearing upbeat and energetic, she joked with colleague Josh Elliott, and even made fun of herself for have a little trouble pronouncing a word. "I can't talk on this side of my mouth," she confessed.

Roberts was suffering for a sore jaw as a result of a treatment of MDS.

"We're going to miss you, but we do appreciate the Jimmy Cagney impersonation before you leave," Elliott joked back. Both then did their best impersonations of the actor, and Roberts did not stay for the rest of second hour of the show.

Weather anchor Sam Champion wrapped up the segment with, "Our Robin Roberts, we love you. Get a little rest. Take a week off, take two, then come back."

Roberts, who survived breast cancer in 2007, revealed on air in June that she had MDS. She was already expected to take a leave from the show in late August or early September for a bone-marrow transplant.

ABC says she was scheduled to go on vacation around now anyway, and that she's expected to return to work in mid-August, before leaving again for the transplant.