Just saw my endo, and we discussed my latest results. Another hypothesis exploded.
We have no idea why things went so weird in 2005.
We're back to square one. Either a recessive mutation of an unidentified type, or a really spectacular psycho-somatic reaction to total denial of primary transsexuality, with some peculiar sequelae.
I'm not saying I give up, but it looks like it might be decades before we find the answer.