I’m surprised no one has mentioned having scraped the lesions, and examined
the particles/threads visually, electron scope, chemically,
and or genetically(if any DNA/RNA) was present. I’m surprised
also that there is no known connnection mentioned between all the
sufferers, common geography, life experience, past illnesses,
water supply, radiation, genetics in parents, and siblings,
(acidosis-tip of the hat to the andromeda strain),medications,
illegal drug use, animal/plant vectors/contact. etc. It is
reported to occur to commonly for there not to be some
type of etiological evidence. I would suppose that it may
be some outworking of brain behaviour(i.e. induction of
hormonal changes or enervation of tissue that could cause
the symptoms.
Any way it turns out to be , may God grant someone the wisdom to
figure this thing out, and/or to heal it. And best wishes
and prayers for you.