I second what Tetters said.
You have to do as much as possible but take into consideration your limitations.
Unfortunately, because of my wife's disability, "I can't afford limitations."
As I do the cooking, cleaning, washing and the shopping and have done on my own for the last several years.
Fortunately, I've always been reasonably fit. Even when I had a hip replacement when I was 69, sixteen years ago, I was back playing golf in seven weeks. I don't exercise, playing golf (weather permitting) three times a week and looking after the garden, I think, is more than enough exercise. Though when I do the shopping, I always walk at a reasonably brisk pace and don't use escalators or lifts.
Sometimes, doing the shopping can involve going to a few shops, to get "the right item" that's on "the list," which can be annoying.
It would be pointless complaining, as I could expect my wife's usual response.
"When I did the shopping, I didn't have a car, I did it with three kids, a push chair, Seven carrier bags and we went on the bus!"
We often smile, as the number of carrier bags increases every time she says it.