Walking works, small household chores vacuuming, ...etc moping floors.
Sweeping etc.... or if you
Have stairs, do a couple trips twice daily! up and down for a round of full 4 ups and downs.

Get up and exercise. A good exercise program that you do daily can be very helpful. It will make your heart and lungs much more efficient, and you'll find that your endurance and stamina will increase. You'll be able to do many things much easier than you could.

Thank you for your thoughts