According to father Mitch Winehouse, Amy Winehouse has been diagnosed with early stage emphysema, allegedly due to frequent cigarette and crack cocaine use. Amy collapsed last Monday evening after signing autographs for fans and, after a week of tests in a London hospital, was diagnosed with the disease.

In an interview with The Sunday Mirror, Mitch stated his ever-public concerns for his daughter’s well-being, reporting that if she keeps using, she will eventually have to wear an oxygen mask, due to her 70% lung capacity and irregular heartbeat.

Amy is still scheduled to take part in her upcoming performances, including the 90th birthday celebration of Nelson Mandela and the Glastonbury Festival. These performances have been medically approved by her doctor and Mitch, who comments that performing is the best thing for Amy at this juncture.

24 year old Amy Winehouse has been in the public eye for the past year or so, due to a recently released drug tape, the imprisonment of her husband, a stint in rehab, and increasingly erratic behavior due to alcohol and drug use.