Whitney Houston's sister-in-law and manager sparked a family suicide scare in Georgia on Tuesday (26Mar13) when she posted what appeared to be a desperate message on her Facebook.com page, turned off her cellphone and went to sleep.

Tmz.com reports Pat Houston's friends and family grew concerned when they couldn't reach her after reading what they feared was her final post - and called the police.

Houston, who is married to the late singer's brother Gary, wrote: "Sometimes you just feel like giving up on life and its many challenges. And for the first time in my life... I’m tired... and I want to finally rest. I love you guys."

Houston awoke as cops arrived at her Alpharetta home and told them she had simply taken medication for back pain, switched off her phone and then gone to sleep. And she insisted stress was behind her Facebook post, not a death wish.

Law enforcement sources tell Tmz.com that Houston was briefly hospitalised, as a preventative measure, before being released.