I'm sorry to hear that age has caught up to this wonderful singer/songwriter. I've been a big fan for most of my life. My introduction to folk music was when my big brother took me to a Pete and Arlo concert in the 70's. My favorite of the many dogs I've had in my life was a Russel mix I named Arlo in his honor.
It does sound like his health is now under control and I wish him a long and pleasant retirement.