The post said that she was in a hotel in Ireland where she had checked in under a pseudonym.
The 450-word entry began, "There is only so much any woman can be expected to bear. What was done to me this week was appalling cruelty."
It went on to say, "The last two nights finished me off. I have taken an overdose. There is no other way to get respect. I am not at home, I'm at a hotel, somewhere in Ireland, under another name."
The 48-year-old musician, best known for her 1990 hit "Nothing Compares 2U," which went to number one all over the world, has spoken openly in the past about her mental health issues. She suffers from bipolar disorder and has been hospitalised several times. In 2007 O'Connor told Oprah Winfrey that she had attempted suicide on her 33rd birthday. In 2011 concerns were raised after she posted several tweets talking about suicide. The following year she cancelled her world tour, posting on her website: "With enormous regret I must announce that I have to cancel all touring for the year as am very unwell due to bipolar disorder."
Today's online suicide note was the latest of several distressing posts over the weekend referring to difficulties in O'Connor's personal life.
Much to the relief of concerned fans, around 90 minutes after the post appeared on Facebook, police at Pearse Street station in Dublin confirmed that the singer was "safe and well" and receiving medical assistance.
Let's hope O'Connor gets the help she so desperately needs right now.
If you need information and/or support, please call the Samaritans on 116 123 or visit www.samaritans.org.
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