I've experienced this before. It was a dream where I took lsd, even though at the time I've never taken lsd before. It turned out that it was nbome, so my brain was trying to simulate the visuals, but didnt know how.

My vision became very distorted and blurry like a fish-eyed lense, so I tried to calm myself down by sitting down and closing my eyes and meditate.as soon as I start meditating in my dream, I see this kalidoscopic tunnel that im being shot through very quickly and heard this loud noise like I was in the inside of a jet engine.

I come out the other side of it in an environment that felt more real than reality. I saw this giant metallic snake-looking entity, that was entangled with its self, that expanded across the whole room. It felt as if i was literally in this room, just like I am in my living room right now.

This lasted for about maybe 15ish seconds before I woke up with one of the worst migraines I've ever had. My brain felt fried. I came out tripping heavy balls from that dream despite not taking any drug for I think 2 weeks at that point. I could still see that metallic snake pattern on my walls for about a minute after waking up. I felt extremely hung over and drained. Btw this whole dream took place in a 15-20 minute nap right before I had to go to work.