I know the feeling jughead. I am 20 years out from two heart attacks, three stents, and triple bypass. I am on my forth pacemaker/defibrillator and it has about 1/2 battery life left. Never heard of anyone getting a fifth but they need to go ahead and get #5 ready for me as I have long range plans. I am in Chronic and permanent A-Fib with a 25% ejection fraction. Class III kidney failure, Diabetes on five insulin shots per day. Loss of use of right hand and right foot. I have claw hand and can't stand or walk without a leg brace. I get around with a cane and a scooter. You don't want to know about all of the the rest. All of that as a result of Agent Orange when I was young and in the military. I do admit that the VA takes good care of me and compensates me well. In the last 24 months I have kept 134 doctors appointments at the VA hospital as well as some more with private doctors.
I can still operate the equipment, with some modifications to the controls and repair it from the ground up when it needs it. I do four hours seat time because I can't manage five and I dread the effort that it takes to climb down when I am done. I pull her up and park next to the step ladder. I refuse to sit down and do nothing but it would be so easy to do that. I work for myself, by myself, at my own speed and don't need to get in a hurry or keep up with anyone.
I put my bass boat in the water today and took the grand kids for their first boat ride. It has been more than 20 years since the boat was in the water. Rebuilt the carbs, new water pump, fuel lines, and renewed the registration. The old 50 Merc runs as good as the day that I bought it new in 1986. It looks like new as it has been kept inside all of those years.
I might need to use a cheater on a 3/8 wrench once in a while but I can make up for it with a lot of will power! I can half heartily out work some of these younger guys, standing on one leg and one hand behind my back. Not complaining or bragging, just keeping on keeping on. And yes, I can tie my shoes with one hand!