Not being a scientist or a doctor, you can all feel free to hold the following guess in contempt. But this is a blog, so guess I will.
First of all, I have zero doubt this doctor is describing her experience accurately. But I also think her interpretation of what she saw, like everyone else who has seen this, is off.
A couple of things to know about these blue cheap disposable masks.
They have incorporated a new meta-material in them which is alleged to have anti-viral properties. By meta-material, I mean something which is not exactly natural, and has properties which are counter-intuitive but can be wildly useful. In this case, a molecule thin layer of carbon called Graphene. The easiest way to think of Graphene is to imagine wiping the side of a graphite pencil tip on paper to colour in a square, then apply another paper to that and pull it off and keep doing that till all the papers have only a 1 molecule thick layer left on it. This layer has all kinds of wild properties that a couple of decades ago, all the science journals were predicting it would be the next cotton, or killer bees. But it does apparently have anti-viral properties and it is in the damn masks. And as a result, the government of Canada has actually banned the blue masks and recalled them all, because the graphene does actually cause respiratory problems. So you go from a minuscule chance of it preventing Covid, to a near guarantee of getting Graphene related respiratory illness if you wear it enough.
Now it seems intuitively likely, that a single layer of a molecule thick layer of carbon, which has the highest ability to bond with other elements, (the second being silicone if memory serves) could easily in a fabric, roll up into little thin worm-like things, and that minuscule amounts of moisture or static electricity, or some other stimulus would cause it to move. Again, Graphene is a meta-material which has attributes that are not typical of natural materials.
So yes, don’t wear these damn masks. Graphene could be a carcinogen for all we know, which is extremely little because we have never asked the masses to wrap graphene around their faces all day before. But I don’t think as of yet, its more sinister than that. But yeah, this is sinister enough.