updated 11/18/2009 AT 8:00 AM ET
•originally published 11/18/2009 AT 8:15 AM ET
Amy Winehouse has spent a third night in the hospital after becoming sick.
She had taken some over-the-counter cures for a cold, and they reacted with other medication in her system, a source tells PEOPLE. She has been in the London Clinic since she was admitted on Sunday.
It’s a familiar place for the singer, 26. Her life has been checkered with health issues – she even came close to death, her father has said. But this time it’s different, with Winehouse feeling healthier and more self-confident.