Freaked out -- I'd imagine!

And yes, you are right, they are indeed hallucinations, and not a kind to worry about at all. Not "proper" hallucinations or whatever. Just to elaborate a bit in case anyone's wondering why we seem to be saying opposite things and agreeing. ;-) A lot of "normals" get them too. But they're afraid to talk about them because they're afraid it's some kind of MI symptom. But it isn't.

(I should've been more clear -- almost did put quotes around "real", for that purpose -- ooops, sorry!)

(I've had both, hypnagogic ones and hypnopompic, but tend toward hypnopompic ones, which all the extremely vivid ones I've had have been, curiously enough. And not dream extensions, like it seems they would be.)