(Cover) - EN Showbiz - Rihanna admits that she "never gives herself the chance to recover."

The singer revealed she had been hospitalised in New York City earlier this week after posting a photo of an IV drip attached to her arm on her Twitter account.

The 24-year-old had been complaining that she felt unwell last week, often posting messages on her Twitter account.

Rihanna is happy to report that she is now healthy again.

"I'm a lot better, thank you for asking," she told E! News at the premiere of her movie Battleship. "I just had the flu and I never gave myself the chance to recover. But I took a couple days, rested. And now I'm here. I always deny myself [rest]."

Now that she has returned to vigour, Rihanna has different physical sensations to worry about. The singer-turned-actress is anxious about her new Hollywood career.

"I'm very excited and very nervous at the same time," she explained. "I definitely have some butterflies. I can't wait."

Rihanna bonded well with one castmate in particular.

"I love Liam Neeson," she gushed.

Battleship will be released in the US May 18. (C) Cover Media