Hi Bill,
Bad health is a sure source of depression and puts a damper on things that you previously loved so much. I would recommend a small .15 electric stunter that can be flown close by your home. I'm busy right now with a 1/2A Ringmaster bipe with a small electric motor instead of the Babe Bee. I can build this in a few hours and it doesn't even need painting. I chose the bipe because I can stick the battery between the wings in the fuz. I'm doing this for the annual Ringmaster Fly-A-Thon this week-end. After that I'll make a prettier bipe that flies better for the same setup. A .15 size electric stunter is a lot nicer to play with and does not really need much more space to fly, so this is why I suggested that. I know that you still have one of my timers, so just use that and get the rest of the stuff that you like from info on this forum.
Stunt kites are great fun and in fact they are good exercise as well. A decent size delta kite will strengthen the old back muscles in strong wind. If the back is past the stage where exercise won't help or make things worse, then stick to smaller kites. I remember the "Banjo man" Bruno van Hoek posting something about a small delta kite with a single handle to train newcomers to fly stunt. You can send Bruno a PM and ask for the details.
One of the best things to do when you don't feel so great, is to be around good positive people, and avoid any negative stuff. The stunt family is exactly that....a family, and a large international one at that. I go to the world champs as much as I can, and the real reason is to see the people that I've become good friends with. Sure the competition is great, but it's the people that keep bringing me back for more. So lean on your friends at times like this. It helps a lot.
I enjoy music and play a little guitar and keyboards. This is my 2nd interest besides airplanes. When things get real muddled up in my head, I do some "rock-therapy". I'm an old hard rock fan and I stick the earphones on and blow the cobwebs out of my system without anyone else even hearing anything. Sometimes, it's also a piece of sloppy romantic or classical music, but it all depends on my mood at the time. Like someone said on a record a while ago....."dance the funky chicken!" This is guaranteed to de-funk you! Even if someone catches you out doing this, you'll both get a good chuckle out of it. Negative stuff is like a graveyard spiral....literally, so push hard on the rudder pedal and get out of the spiral asap!
Keith R