Gayle King Says Oprah Was Hospitalized Over Stomach Bug, Stuff 'Out of Both Ends'

Oprah Winfrey was MIA from CBS this week, despite previously being announced as a guest to plug a new book -- and the reason is simple ... she was pooping and barfing. O's bestie Gayle King got a little TMI during "CBS Mornings" Tuesday -- where she and the other anchors were hosting author David Wroblewski ... who's got a new book out that Oprah trotted out as the latest addition to her famed book club. Gayle explained Oprah's absence …