You don't need a double-blind study to determine if acoustic emissions are the culprit. You just need to measure specifically for infrasound (and ultrasound, for that matter). It's an unusual form of pollution but very much measurable if you know to look for it.

Unlike the things you mentioned, infrasound is understood to be a thing these days and is sometimes considered in construction. It's not exactly witchcraft; most equipment (including decibel meters) just isn't built to account for very low frequencies.

If the data center does put out noise at very low frequencies that's probably some kind of unintended resonance that they'll have to stop. It might be as simple as slightly changing the RPMs of some cooling fans or installing sound proofing in specific places.

Infrasound isn't some fringe conspiracy theory, it's well-understood, and infrasound weapons are banned by the laws of warfare because they literally torture people to death and can cause internal bleeding.

The infrasound in this article is obviously less intense than a deliberately designed weapon, but it can still cause extreme discomfort, pain, illness, and stress.

It's very likely that she does have some sort of health problem and doctors weren't useful in finding it. It's very hard not to be superstitious in that situation

most of these are a psyop to make the real things sound phony