updated 05/09/2012 AT 4:00 PM ET
•originally published 05/09/2012 AT 4:55 PM ET
Rihanna is on the mend after recently being stricken with illness.
There’s been no confirmation of reports that the singer was hospitalized, but a source close to the pop star tells PEOPLE: “She had a fever and flu since last week and needed an IV, but is fine now.”
And indeed, she does seem just fine.
Since posting the alarming photo, the Twitter-happy starlet has been posting away like usual.
Reporting by Joey Bartolomeo