Boyle told the Observer newpaper that she saw a specialist a year ago , who told her she had Asperger's and above-average IQ.
Boyle , 52 , had learning difficulties as a child , which she was told were the result of brain damage from oxygen deprivation at birth . She struggled in school and was bullied by other children .
"I have always known that I have had an unfair label put upon me ," Boyle said in the interview , publish Sunday . "Now I have a clearer understanding of what's wrong and I feel relieved and a bit more relaxed about myself."
The church volunteer from a small Scottish town became a global senation when she sang the Les Miserables number 1 "I Dreamed a Dream" on Britain's Got Talent in 2009.
The contrast between her shy manner and soaring voice won Botle Legions of fans . She has sold more than 14 million records around the world and recently released her fourth album , Home for Christmas . She makes her big-screen debut The Christmas Candle.
Boyle has occasionally struggled with the pressures of fame and was treated for nervous exhusssssssstion soon after her stint on Britain's Got Talent .
"Asperger's doesn't define me . It's a condition that I have to live with and work through , but I feel more relaxed about myself . People will have a much greater understanding of who I am and why I do the things I do .
Let's hear it from Witchy : Bullies should be pitied . They must bully others in order to make their own miseables happier . They have no self esteem and not enough intelligence to figure out how to make themselves better . Susan is twice the person any of her bullies could ever hope to be . She's had the last laugh .
