I think that recovering from covid is dependent on three factors-which strain you get , your age and you previous fitness levels
I have two friends who caught covid in January last year :
One is 55 years old has type two diabetes a thrombosis problem ,a poor diet, but goes to the gym once or twice a week and is still feeling off .
She gets tired very easily .
Her friend is 70 ,very overweight and unfit .She loves sweet things and drives everywhere .
She had trouble walking pre covid .
She nearly died in hospital and now has blood clots in her lungs ,a damaged heart and very swollen legs .
I don't know what her prognosis is .
I don't think that it's good .
I've met other people of all ages and fitness levels ,who didn't know that they have covid ,but tested positive and others who felt as though they had the flu in varying degrees and others who thought that they'd never recover .
Plenty of rest , a super healthy diet and gentle exercise seems to be the key to making a full recovery .
But there no magic formula .
I'm still waiting to regain my sense of taste - everything is bland .