2010: Mitchell has said that she has Morgellons syndrome.
https://de.wikipedia.org/wiki/Morgellons
2015: Mitchell suffered a brain aneurysm rupture, which required her to undergo physical therapy and take part in daily rehabilitation. Mitchell made her first public appearance following the aneurysm when she attended a Chick Corea concert in Los Angeles in August 2016. She made a few other appearances, and in November 2018, David Crosby said that she was learning to walk again.