Joni Mitchell’s conservator, Leslie Morris, confirms today my story from May 29th: Joni Mitchell suffered a brain aneurysm.
Morris writes on Mitchell’s website: “Joni did in fact suffer an aneurysm. However, details that have emerged in the past few days are mostly speculative. The truth is that Joni is speaking, and she’s speaking well. She is not walking yet, but she will be in the near future as she is undergoing daily therapies. She is resting comfortably in her own home and she’s getting better each day. A full recovery is expected.”
There was a little outbreak of sub-headlines about this after musician David Crosby mentioned it in an interview. The Hollywood Reporter than reported it and called him “Bill Crosby.” So at least there’s a laugh there.
Here’s the link to my original story: http://www.showbiz411.com/2015/05/29/update-joni-mitchell-moved-to-rehab-improving-after-brain-aneurysm 
Always send prayers and good wishes to Joni to get well soon. Thanks to Leslie Morris for getting back to me in a timely fashion.