The most studied and given vaccinations in history?
Or a disease that causes tremendous endothelial damage that ends up causing acute ischemic strokes, intracerebral hemorrhages, low oxygen?
Occam's razor cuts it to the latter.
CoVid has been documented to cause altered mental status, dehydration, hyperventilation (low {xygen), and low blood sugar here: sciencedirect.com/science/articl…
Low blood pressure from Intracranial hemorrhage (itself enough to take you down, obviously).