The technical term is "windmill disease", named after the people who complained of illness when windmills were set up near their homes (that they blamed on windmill energy leaks or whatnot), only for it to be revealed other windmills, or even the one being complained about, had been in operation, closer, for multiple years, but the knowledge of the existence of windmill disease, caused the windmill disease.

There's many windmill diseases out there, Long Covid is one of them for sure, but it's not like the medical community doesn't know that these ailments exist. They act almost as if there's financial incentive for them to NOT bring up how well-known it is...