Coil whine

I used to operate a drill rig for taking soil and water samples. I learned to read all the utility markings and to spot the telltale markings of previous drill work. I can walk around an urban area and tell you where all the gas stations and drycleaners used to be just based on a look at the pavement. In that sense I can "see" things others can't.

The tragedy of my life

Low light vision.

I was always very sensitive to bright lights and sincerely fear I'll go blind at my last years but I can see at higher definition under low light conditions.

My vision stops processing color and I get higher definition of contrast. I've walked through dark areas with no difficulty, where others simply said they could not see a thing.

Back in my youth when I ruined my teeth by drinking 5-6 liters of Coca Cola a day, I could smell if a bottle was three or less months from expiration date, or if it was fresher.

The ringing in my ears is my own personal sensation. There are many others with a ringing of their own, but this one is mine and it undoubtedly is as unique as my fingerprint.

I see certain shades of blue as grey, while my partner can distinguish more shades of blue than the average person, leaving me often feeling like I'm being fucked with

I wear almost exclusively grayscale clothing, except for a pair of pants that are apparently navy blue, and a shirt that's supposedly slate blue

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.

My nose is more sensitive than average to certain types of foul smells mostly in the poop and rotting organic material categories but also things like mouse / rodent urine, skunks, and cigarette smoke. Oh joy.

Mostly it makes me feel like I'm going crazy because I smell these things when nobody else seems to notice leading me to wonder if I'm just hallucinating the smell. But sometimes I put it to good use by being the early warning system of skunks in the area and sometimes I'm the first to notice when the milk is starting to go bad.

Not exactly sense, but my brain's processing. I can easily pick out the melody of only 1 instrument in music. It's like Fourier transform but on instrument level.

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

When food is going to go off, or when an object has developed mildew/black mold, I can tell way before anyone else by smell.

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.