Ono, who just turned 83, was originally reported to have had a stroke, but her family cleared that up quickly, with son Sean Lennon tweeting "was NOT a stroke, just dehydration/tired. She is FINE." He added that the only stroke she had had was "a Stroke of Genius! :-)".
Ono's publicist, Elliot Mintz, reported to the New York Daily News that Ono was "doing just fine."
The multimedia artist still lives in New York's famed Dakota, the building to which she moved in 1973, and the scene of Lennon's murder in December 1980.