The 'We Found Love' singer raised concerns after posting a picture of herself with an IV drip on Twitter earlier this week.
However, Rihanna is now reportedly feeling "fine" and recovering from a recent bout of flu which sparked some concern amongst fans this week after the singer posted a picture of an arm connected to an IV drip on her Twitter page.
There has been no official statement that the singer was hospitalised, although a source close to the singer confirmed to People magazine that she had been taken ill: "She had a fever and flu since last week and needed an IV, but is fine now," they told the publication.
The 'Talk That Talk' star had posted several messages on her Twitter account before the photo was revealed admitting she was feeling under the weather. However, shortly after the picture was posted, Rihanna also uploaded a shot at an airport as she headed from New York to Los Angeles, where she seemed healthy and fit.
Meanwhile, Rihanna has recently unveiled the official music video to her latest single 'Where Have You Been' which she will be performing on the final of American Idol later this month, on the same night that Jason Derulo makes his live return following his neck injury.