>>30946763if we go with theory of the dragon head
is necrozma trying to mimic or is similar to the tapus?
because I remember one of the books of the library in the game mentions how tapus made thier shells hard and sturdy by harnessing the power of nature and I suppose that necrozma was doing the same but in a more literal way by sleeping underground until it was awoken
maybe it's a hint that it's some kind of UB version of the tapus?
my hypothesis is that
it was a guardian for the ultraspace but it was heavyly damaged and thrown out of the ultra space by something and was trying to recover underground since then and it's awakening was because of the tearings between the pokemon world and the ultra space but sadly it was not able to fully recover when awoken and it also forgot who it was in procces of recovery hence the headache animation 
