It seems like many of us here are worried about the same thing. Some posters have described improvements after a few months, while others have described ongoing issues for years. There's information on line about a "post-viral syndrome" that existed before covid (e.g. some people who had the flu) that produced similar symptoms (but, obviously, not on the scale that we're seeing now). At the very least, I hope that more research into this "syndrome" might help to find interventions that would (at least) help alleviate our symptoms.