77 here too - retired from flying in 2012. And recurring dreams? Often, about flying without a current medical certificate. My ATPL is good forever,
provided it's accompanied by a current medical certificate, which I haven't bothered renewing since retiring. And in the dreams, I've been talked into flying one more time, and even in the dream, realise what a idiot I am to have been pressured into it!
I haven't flown since I retired, and don't miss it. Saw lots of places, did recurrent sim training in the States, UAE and the UK, but now just as happy as a pig in **** on the farm and not having to deal with the daily traffic grind when I worked out of Brisbane.
And the joke is that my older sister said when I retired that now, "you're your own boss - you can do as much or little as you like". There just aren't enough hours in the day to do all the stuff I want to do. I love bluegrass music, so bought a nice new banjo with the intention of sitting on the deck for an hour a day learning how to make music with it. Apart from tuning it with one of those electronic tuning gizmos, that's all I've done with it - in 13 years!!!
One day... (or to quote CCR - "Someday Never Comes"