Background: Susan Magdalane Boyle (born 1 April 1961) is a Scottish singer who came to international attention when she appeared as a contestant on the TV programme Britain's Got Talent on 11 April 2009, singing "I Dreamed a Dream" from Les Miserables. Her first album, I Dreamed a Dream, was released in November 2009 and became the UK's best-selling debut album of all time, beating the previous record held by Spirit by Leona Lewis. I Dreamed a Dream set a record for biggest first week sales by a debut album, according to the Official Chart Company in the United Kingdom.
Context: In August 2008, Boyle applied for an audition for the third series of Britain's Got Talent (as contestant number 43212) and was accepted after a preliminary audition in Glasgow. When Boyle first appeared on Britain's Got Talent at the city's Clyde Auditorium, she said that she aspired to become a professional singer "as successful as Elaine Paige". Boyle sang "I Dreamed a Dream" from Les Miserables in the first round, which was watched by over 10 million viewers when it aired on 11 April 2009. Programme judge Amanda Holden remarked upon the audience's initially cynical attitude, and the subsequent "biggest wake-up call ever" upon hearing her performance.  Boyle was "absolutely gobsmacked" by the strength of the reaction to her appearance. Afterwards, Paige expressed interest in singing a duet with Boyle, and called her "a role model for everyone who has a dream". Boyle's rendition of "I Dreamed a Dream" was credited with causing a surge in ticket sales in the Vancouver production of Les Miserables. Cameron Mackintosh, the producer of the musical, also praised the performance, as "heart-touching, thrilling and uplifting".  Boyle was one of 40 acts that were put through to the semi-finals. She appeared last on the first semi-final on 24 May 2009, performing "Memory" from the musical Cats. In the public vote, she was the act to receive the highest number of votes to go through to the final. She was the clear favourite to win the final, but ended up in second place to dance troupe Diversity; the UK TV audience was a record of 17.3 million viewers.  The Press Complaints Commission (PCC) became concerned by press reports about Boyle's erratic behaviour and speculation about her mental condition and wrote to remind editors about clause 3 (privacy) of their code of press conduct. The day after the final, Boyle was admitted to The Priory, a private psychiatric clinic in London, Talkback Thames explained, "Following Saturday night's show, Susan is exhausted and emotionally drained." Her stay in hospital attracted widespread attention, with Prime Minister Gordon Brown wishing her well. Cowell offered to waive Boyle's contractual obligation to take part in the BGT tour. Her family said "she's been battered non-stop for the last seven weeks and it has taken its toll [...but...] her dream is very much alive," as she had been invited to the Independence Day celebrations at the White House.  Boyle left the clinic three days after her admission and said she would participate in the BGT tour. Despite health concerns, she appeared in 20 of the 24 dates of the tour, and was well received in cities including Aberdeen, Edinburgh, Dublin, Sheffield, Coventry, and Birmingham. The Belfast Telegraph stated that "Despite reports of crumbling under the pressure..., she exuded a confidence resembling that of a veteran who has been performing for years".
Question: what was wrong with her mental condition?

Answer:
Her family said "she's been battered non-stop for the last seven weeks and it has taken its toll [...