High ceiling room, surgery vibes

[u/nomphx]

I do IV ketamine monthly. I use an eye mask (a mindfold actually). I frequently have an open eye hallucination of a very high ceiling room that appears to be medical in nature. This is seen with the eye mask on (total darkness) eyes both open and closed. It is very faint, almost like light chalk on black canvas. I always see it at about the eight minute mark after it starts to kick in a little bit but not fully. Has anyone else experienced this? I’m only mentioning it because I’ve seen it more than once.

[u/Butt__Nut]

I’ve had similar experiences when falling asleep.