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Show HN: Bodily Oddities (vester.si)
260 points by vesterde 23 hours ago | hide | past | favorite | 171 comments
When I was about 11 years old, my best friend and I were playing during recess at school, and I was carrying him around on my back, presumably pretending to be a multipart attack robot. All of a sudden, my heart started hurting, and I collapsed to my knees, and the robot was no more. Every time I inhaled, it would feel like a spike was being driven into my heart, and my breathing got completely shallow. I was sure I was done for, when all of a sudden, after an exhale, it disappeared.

It wasn't until I was in my twenties that I learned this was called Precordial catch syndrome and it happens to most everyone. Every friend I've told about it was surprised, and also most knew the feeling.

I collected a growing list of strange things bodies do ever since. And now finally I made it into a little page for others to see:

https://vester.si/bodily-oddities/

It includes a form to tell me about new things, if you think they belong on the page. Feedback welcome!

 help



Interesting project.

One small suggestion though: try to always make the first sentence show fully in the card. Several times I was a bit miffed I had to actually click to find out what a card was about, when it would have been better for me to get the gist in advance to know if it was something I wanted to read about.


Monday is a light brownish, Tuesday black, Wednesday blue, Thursday ochre, Friday dark blue, Saturday white/silver, Sunday black.

January blue, February brownish, March is black and white, April green, May black, June yellow, July darker yellow, August dark green, September ochre, October blue, November brown, December black.

Thanks for coming to my synesthesia TED talk.


Brilliant website. And Bodily Oddity is a great name.

I wish I had kept a notebook of this stuff as a kid, I remember having a lot of odd experiences and sharing them with my friends, but it was so long ago now.

I think most of them were visual oddities.

I remember seeing floaters for the first time, and asking my mother about them.

"Oh, that's just [neighbor] throwing trash out the window."

The delights of growing up in Eastern Europe!

I also get these "worms", bright glowing white. I heard they might be white blood cells moving through capillaries, but why would they be glowing? I usually see them after cardio.

Another fun thing to do is to stare at one point until your entire visual field goes grey (the afterimage cancels out the image... "neurons get tired" or something), then slightly move back/forward or slightly rotate your head, producing very interesting patterns from the interference...

I should write a book...


The geometric nightmares! I had those as a kid whenever I was very tired or had a fever, and kept having them until my late teens. Never seen them described and didn't know it was a thing.

Had them as a kid. A canvas in beige that spanned my whole view and was the entire world. There was an invisible opponent and we played a game. You filled half of the seemingly infinite canvas with black or a dark blue. Then the other person until no beige remained. I always lost.

Same here. I also recall them when I had fevers in my childhood.

I attribute them to the fact that, while trying to sleep with a fever, my eyes are half-open, and any sharp object becomes a visible geometric shape that my brain attempts to comprehend but almost fails to. I still experience them in adulthood. I’ve never had sleep paralysis, but whenever I think of people who have it, I imagine it feels as debilitating as these half-sleep experiences where you’re unable to move while your brain processes distressing memories.

“Geometric Nightmares” is not a scientific name. It is simply the name given to this phenomenon in forums [1][2] where people discuss and share their experiences.

[1] https://www.reddit.com/r/Dreams/comments/7ofu86/x/

[2] https://www.reddit.com/r/geometricnightmares/


Last time I stopped smoking cannabis I got these for a couple days. They are intense. The most recent was kind of like taking a slow rollercoaster ride through three black hole sized perfect spheres orbiting nothing. Another one was less geometric but was basically me getting sucked into a black hole. Both had this almost lucid dreaming feel where my entire sense of self became condensed into a single point... but I was still there, aware of what was happening... it was incredibly memorable.

Interesting. I recently discovered that my sister and I have identical geometric nightmares, down to every detail, while everyone else I mention this to thinks it's insane. I wonder whether there's a genetic aspect?

I also had something like this. Again as a kid, with fever. Very unsettling. But I don't remember having it as an adult. Strange.

I had a recurring abstract nightmare as a small kid (don't think it was related to fever but I guess those were pretty common) which was basically about a line, gradually becoming messier and messier until it was all just a big jumble. I could never explain it to anyone else, but it terrified me for a time.

Crazy, I used to have the exact same (well, as best as I could describe them they were the same) dreams. I can still vividly remember the feeling of them, of the perfection of the line, and the growing pressure of some external force trying to mess it up, until eventually it always did.

I'm wondering if "geometric nightmares" is a reoccurring dream I've had since I was a kid too, basically two cog-wheels linked with each other, but one is extremely huge and the other unbelievable tiny. I'd never describe this as a "geometric nightmares" though, but it does kind of sound similar.

Maybe there is something about "contrasts" as they all seem to be vaguely related to "big difference" basically.


I've heard these fever dreams referred to as big-small as well. I believe it's the same phenomenon. For me it was pillars from high up above, where they're all the same width, but one is also much bigger at the same time. Hard to explain... Just an odd feeling.

And, anecdotally, I have gotten a similar feeling reaching deep enough meditation.


Very cool website. I'm not sure if this is worthy of adding, but sometimes if I eat something extremely salty I get a pain in what feels like my saliva glands for 3-5 seconds or so after the first taste (it then goes away).

I think it's the same as in this reddit post where others describe it: https://www.reddit.com/r/DAE/comments/1hw4xx3/dae_ever_get_a...


I share this (in hindsight, hasn't happened in a while).

I always assumed it was the saliva glands going into overdrive.

I didn't think/realize it was limited to salty things, to me it was connected to things I really like.