I don't know whether anyone else gets this, but someone mentioned avoiding being heard pissing at other people's houses so this is sort of similar. I can't take a dump anywhere but my home pretty much. Took me over a year of relationship to shit at my girlfriend's house. I'm terrified of being heard and people thinking that I'm disgusting for shitting in their house. I've held a shit in for over two days and it hurt like fuck in my stomach.
Also holding in a shit, you find that the sensation of it bursting out waxes and wanes. The colon is a curious fucking thing.
The sensations of jumping or doing weird things in inappropriate sensations. I used to get this to a level where I thought I was developing tourettes. I used to imagine just flailing and breaking someone's nose or sat counting bar's rest in a concert or just waiting for the next piece to start. A desperate sensation to scream.
Sometimes get dreams where I dream of really mundane things in the future. They actually happen true to the dream. The first one I had was just going down the stairs and going round the corner. Something I do everyday, but in the dream something was different. There was something odd about the arrangement of the coats at the bottom of the bannister. They get more intense. The most recent one was about skyrim. About 7 months ago I had a dream that I was playing on a game where I was walking through a room and I jumped on something. I just remember the screen, it was my TV. Then last week I was playing skyrim and I was walking around in a room, looking for the tomb of Jorgen Windcaller if anyone was interested. and I freaked out. It's all really uninteresting shit but no one believes me.
Also dreaming you're going to die really freaks me because of the Deja Vu thing above