I can smell your fabric softener, no matter how long ago you used it. Artificial perfumes of any kind just murder my sinuses. It suuuucks.

I also can hear electronics, even just the lights, if that’s all that’s on. Maddening, because I can almost never find real silence. It’s why I love camping.

The god-awful taste of sugar substitutes.

A lot of people can taste things like saccharine I think? But I can taste any fake sugar, even when there is a mix of real and fake sugar in the same thing.

Aspartame/acesulfane is definitely the worst of them all, but sucralose, stevia… all of them taste like medicine kind of.

I can also taste the difference between cane and beetroot based granulated sugar. Beetroot sugar is sharper.

High pitched noises sometimes. I have an audio spectrum visualizer app installed to confirm these. But they can be pretty weird as they bounce around. You’ll get these heat spots. Unfortunately, I feel like my ears are degrading now.

Anyway, dimmable LED lights are often a problem due to PWM. Only full brightness is quiet.

Smell, I don’t even know what the hell that was. There is or was something in the back of one bus. I wouldn’t say it’s smell, but… something. Just a spicy punch that doesn’t quite let me breathe in. I noted down the license plate if I’ll experience it again to confirm it’s the same vehicle, but this wasn’t the first time, though unfortunately I didn’t copy it that first time. Same line though, so possibly same vehicle as well.
But I am not sure if I was the only one, no one was visibly bothered, but who knows.

i can see very well in the dark, like pitch black night in the arctic circle in a forest i can see the ground enough that i wont trip and can avoid things like snakes

i fucking hate all the bright lights on cars now btw. the sun is genuinely distressing to me i just simply cannot go outside without sunglasses, even when its very cloudy

I can feel whether a battery is full or empty based on its weight. I know it doesn’t make sense but I’ve done a blind test and it works. Empty battery is lighter.

I can tell where a laser is pointed on me without looking. Like if you blindfold me and got a laser pen and shined it on my arm, I can point to where it feels like it is with pretty good accuracy. It’s easier to detect motion than precise placement, and sensation wise it’s not touch or heat like you’d expect it’s more like raw proprioception.

Also it felt the same regardless of the color of laser we used which seems odd since you’d think higher frequency light would be easier to detect.

Tbf I haven’t done the experiment since I did it with my siblings when I was pretty young. Not sure if I can still do it, but my siblings and cousins couldn’t do it even back then.

I think maybe I’m sensitive to some bad smells other people don’t get. One time someone was demonstrating to a group (including me) making chocolate and it smelled like vomit to me and I had to leave. The others weren’t bothered.

This might be a personal preference thing rather than a sensing-something-undetectable thing but I’ve always hated the flavour of dairy—can’t stomach dairy milk, dairy cheese, dairy butter, etc. The vegan versions of these things are fine to me though because they don’t have that distinct “dairy” flavour whilst still having the other qualities of the product.

I can taste water, irl no one I met really can feel the different tastes of plain water but i can

I think I can see more colours in the stars than most people. I can also tell the northern lights are coming up earlier, so probably just low-light cone sensitivity.

A wasp died in a vent a bit ago and it smelled awful to me, but nobody else could perceive it at all.

I’m a super-taster and thanks to lots of childhood abuse I’m hypervigilant. So pretty much everything. If a person anywhere in the area has been smoking or in a smoky room any time in the last day or two, I’ll know it. I know what you last ate - and drank, if it wasn’t water. I can hear a woman sobbing quietly in a locked room down the hall when nobody else can.

I see beauty in the clouds in the sky at night. I smell faint smoke on the wind. Scents that remind me of long ago, when I was a child - like the smell of shrinky-dinks coming off a hot metal mold, or pastries coming out of an Easy-bake oven. Autumn leaves swirling in an icy breeze. Or the smell of something like earwax, or tar.

I often wonder how normal people live without sensing so much of the world!

I can sense when it’s time to wake up, while asleep.

It’s likely just confirmation bias, but I almost always wake up minutes before my alarm if I have a stressful or unusual appointment, like an early flight or interview.

I assume most people has this with their routine wake-up time, that the body learns when to wake up right on time… but this is like: if I usually wake up at 8:30 but now have to wake up 5:45 or 6:15 or whatever, I’ll wake up on my own right before the alarm goes off. I just need to think about it somewhat thoroughly (wake-up time and approx. how many hour of sleep until then) before falling asleep.

I don’t know what it is, but I can smell a somewhat metallic type smell on some specific people’s breath. It always smells very similar between different people. They generally aren’t very healthy, but no one seems to know what I’m talking about.

The tragedy of my life

i can hear power supplies. kinda annoying.

Before I lost my sense of smell I was absurdly sensitive to ranch. If my ex opened a ranch dip in the apartment I would be dry-heaving very quickly. When I was a kid I would sometimes move seats eating lunch at school because other kids had ranch doritos. Not having to deal with that anymore was a rare positive to come out of my awful experience with covid.

I can enjoy coldcuts and cheeses, but they’ll make me sick if they’re not extremely fresh. In some cases they already smell and taste like they’ve gone rancid fresh off the slicer.

Pancreatitic sepsis fucked my tastebuds, my hospital stay was extended a full week because I couldn’t keep down foods other than sweets. They actually restarted me on the feeding tube because of that. When I went off the NPO and got to eat again for the first time I asked for a spicy sandwich from Chick-Fil-A, I’m pretty sure it was just an ordinary spicy sandwich but in that moment it tasted like the spiciest thing I had ever eaten in my entire life. I don’t like the taste of water anymore, which is miserable.