I wonder if you might consider this …
I refuse to be denied and will ultimately find ways to help myself even if no one else will. The healthcare professionals gave up on me the minute their “clot buster” failed to clear the clot and they had no alternatives and essentially wrote me off. It’s a long story, but I am here and doing nicely thank you very much.
I stuck to my pre-stroke philosophy and treat stroke as just another of life’s obstacles, of which there are many, but there is not yet one I have not overcome.
Physical activity, is good for you. It does not have to be brisk - I do mine sitting in a wheelchair or Riser Recliner chair, but I still enjoy the benefits of physical activity.
Don’t take things you see or hear literally or at face value. Think about it and see how you can benefit from it or adapt it to suit your personal circumstances.
We are all different and we all have to work according to our own limitations and aspirations.
I wish you success, however, you choose to go about it.
Have a wonderful new year and surprise yourself 
Pea.