[SergeAx]

I was asking beacause a friend of a friend has the similar condition after catastrophic motorbike crash. He spent a month on a medical bed and then had to learn walking again. During that, he had to rest a lot after a minute of walking. I can't believe that COVID can make the same near-death effect on a body.

Note: I had mild-to-serious COVID myself with severe fever and 12% of lungs damaged, and was literally one day from rushing to the hospital. 0/10 will not recommend, had to fight with after effects, but nothing even near what you or OP described.