Yeah, I used to get bugs and snakes everywhere. Normally I kind of like bugs and snakes but I was always uncharacteristically afraid of them. Everything looked filthy and diseased, trash everywhere, thick layers of dust.
One time I was storing some things for a friend who was in between places and I thought he came to my window to get them, so I got him his things and handed them out to him, afraid when he turned into white dust that blew away. The fact that I lived on the third floor, and it was raining never even entered my head. Ruined most of his things. Then he came back several more times to my window to yell at me about breaking his things and what a shit friend i was. I still feel guilty about it 20 years later.
One of the kinda cool things that happened a couple times was a green jiggly jello like substance coming out of the walls till it formed a screen that played 3D movies, and only once was the show horrible.
Mostly however I just felt sick, miserable, and scared out of my mind. Metal as fuck, but nothing I plan on doing ever again.
It's a new day though, you can surely find much nicer things out there to experiment with, unless you are really looking for something to make you feel horrible and see terrible things you think are real. Keep searching, and keep reading.