bzz.. bzzzz... bzuzz..uh.. What? (gotta check with the IGM)
Well, we Are infested with trillions of beasties (there's one that hangs around our eyebrows which looks quite dragon-like.) But that's just the body-machine.
Don't think the thought works for 'the body' part of 'a person', *particularly
-- but given that the mind (allegedly somewhat related to the brain) has to Tell 'Us' each morning: ~'what' we are and where we are
-- in that pregnant few seconds as we awaken from the 'little death'
(Noting that: while in a dream-state our very idea of 'time' and motion is surreal as is 'our' 'self'):
I'd guess that a hive-mind would bear the same illusion of 'wholeness'/unity that we fancy we possess..
after those few seconds every morning, during which all we perceive is ~~
[THIS must be 'I'] [so, apparently, I AM.] {Hmmm ....Now, wtf Am I? Ah yes, that's Lucy's blouse.. etc.}
So I'd suppose: hive or jelloware, 'We' couldn't Tell.
(Nor could variants on 'we' -- those who hear voices "inside-head". Our 'I' is immanent (despite all the other little-'i's always chattering, too. I think..)
* a body has eyes and a mirror, so.. likely would perceive difference between a swarm and a pretty dense pinkish (or other hue) blob.
We now return you to your previously scheduled personality.. what's that? you Forgot that one !? Too..?
Hey: are you awake or dreaming-you're-awake!? Are you ummm, Sure?
OK, how did you tell Fersure??