09/12/2013 02:53 GMT | Updated 09/12/2013 02:56 GMT

Susan Boyle Says She Was 'Relieved' To Have Asperger Syndrome After Being Wrongly Diagnosed With Brain Damage

Susan Boyle has revealed she was wrongly diagnosed with brain damage as a child, but was 'relieved' to discover she was actually suffering from Asperger syndrome.

The 'Britain's Got Talent' star says she suffered years of bullying and was given the nickname of 'Susie Simple' at school in an interview with The Observer.

Susan Boyle

"It was the wrong diagnosis when I was a kid. I was told I had brain damage," she told the paper.

"I always knew it was an unfair label. Now I have a clearer understanding of what’s wrong and I feel relieved and a bit more relaxed about myself."

The singer was eventually given the right diagnosis after seeing a Scottish specialist.

"Nobody told me to," she explained. "I thought I had a more serious illness and couldn’t function properly.

"I was told my IQ was above average."

SUSAN BOYLE BLOG: Paying It Forward...

Asperger syndrome is a form of autism which sees sufferers struggling with communication and in social relationships.

"Asperger’s doesn’t define me," she added.

"It’s a condition that I have to live with and work through, but I feel more relaxed about myself.

"People will have a greater understanding of who I am and why I do the things I do."

It was recently revealed that Meryl Streep has been lined up to play Susan in the big screen adaption of her life story.