Seeing stars

“Ants? Where?”

“Huh, what flies?”

“I see no ants or flies.
I swear there isn’t any moving thing on the table!
Are you okay?”  

Okay, so what I’ve been seeing isn’t naturally, physically there. Is this a “trembling of the veil” into the “shivering other existence” as Yeats would say? Or, is it simply a medical condition?

Point is, how shall we say it? Am i seeing stars? The twinkling essence we see in the dark nightsky and the dark moving, flashing spots we see in the bright daylight. Are they one and the same?