Although the results of the toxicology report on Amy Winehouse won’t be available for several weeks, her family has spoken out, saying they believe when Amy gave up alcohol completely a month ago, it was too much of a shock for her tiny 4’11” frame. Her doctor apparently recommended that she cut back on drinking slowly, but instead she went cold turkey. A source close to Amy’s family told the British paper The Sun: “Abstinence gave her body such a fright they thought it was eventually the cause of her death.” Dr. Carol Cooper confirmed to The Sun that a complete withdrawal from alcohol could have killed the 27-year-old singer, saying, “The heaviest drinkers have a particularly severe form of alcohol withdrawal called delirium tremens, or DTs.” Amy’s mother Janis vows that her daughter was coherent and completely clean at the iTunes Festival the day before her death. However, an onlooker told the paper Amy downed “gallons” of gin and Red Bull and “drank the bar dry,” adding: “Amy was behaving really erratically but that was nothing out of the ordinary for her.”