Amy Winehouse’s decision to cancel her remaining 2007 appearances was reportedly reached after she spent three nights without sleep.

An inside source told the Mirror that the singer was exhausted after what “seemed to be a constant party” in her hotel suite: “There was constant noise and people coming and going at all hours. There was no let up. She was awake all hours.”

After the cancellation announcement was made on Tuesday night, Amy went into hiding and dad Mitch Winehouse has explained he’s worried about his daughter: “I’m very concerned for Amy’s welfare. She’s very, very tired. She’s sorry to have let the fans down. She needs professional help.”

While Mitch denied that Amy had entered rehab, other sources claim she is receiving medical treatment for stress but not letting her emotions or cancelled gigs stop her from working.

A friend of Amy’s explained that in the same way her previous split from then-boyfriend, now-husband Blake Fielder-Civil inspired her ‘Back to Black’ album, his current imprisonment will inspire her next one: “She was doing what she does best, making music.”