According to Fox News:
Amy Winehouse's father has reportedly said his daughter has lung damage from smoking crack cocaine and cigarettes, and could end up in wheelchair in a few short weeks if she doesn't lay off the drugs.
Mitch Winehouse told the U.K.'s Sunday Mirror newspaper that his daughter has an early form of emphysema and has been warned that she will have to wear an oxygen mask unless she stops smoking drugs. Winehouse --a former taxi driver -- said the singer also had an irregular heartbeat, the paper reported.
Winehouse collapsed at her north London home Monday after signing autographs for a group of fans and was taken for tests at a London hospital. She has remained under observation and has agreed to start a drug program.