This guy is not winded... he may be on crystal meth but he aint struggling with breathing..
He looks a bit different though. Slimmer face? Even more tan? For me he looks really tired, just wound up by adrenaline. I probably looked like that when I didn't sleep before my BSc exam.
To be honest, if he really was ill and they fixed him in 3-4 days, it at least shows what the best medical care and drugs can do. So maybe we'll get this kind of treatment next year or so.
Because most people, even younger and fitter than him, need between 7 to 14 days to go get back in shape with the normal, approved therapy (when there are no complications).
On the other hand, given that he was treated with antibody injections and steroids, the most severe side-effects would be mood swings and aggression.
In other words: while this could be a massive problem for teachers or bus drivers, it's apparently OK for a world leader. Trump has been like that for decades (and it helped him won the last election).