According to the Daily Mirror, the star entered the hospital Saturday night, shortly after getting a boob job.
A friend of the 26-year-old singer revealed that Winehouse was in extreme pain, and said, "I need to see someone, my boobs are f***ing killing me."
Winehouse’s manager drove her to a London clinic, stopping at a restaurant on the way, because the singer didn’t want to eat hospital food.
“Amy’s doctors ordered her to stay overnight to make sure everything was OK,” continued the insider. “She only had her breasts lifted a few days ago and she should have been resting to let them heal instead of running around town.”
Just a few days ago, it was reported that Winehouse is preparing to release a new album in 2010. Her last album, 2007’s Back to Black, was followed by a few years of personal difficulties for the singer.