Search ammonia and sulfur smells in bowel movements, and see if any typical causes match your current dietary habits or medical status/medications including supplements. If they don't, see a doctor, then get to a gastroenterologist, if you can. Maybe just do that, anyway. Regular checks, and digestive health are extremely important, regardless of weird poo and especially because of weird poo, no matter how uncomfortable, it's more comfortable than the alternative. Source: life of intense health problems. Get your butthole checked. We believe in you.

Perms and hair removal products both contain chemicals that smell like sulfur, often described as "like rotten eggs" (my experience with rotten eggs is miniscule so I can't confirm). Cruciferous vegetables contain sulfur, as do eggs of course. Thinking back on what you ate, remember it could be more than 24 hours ago, or it could be gas from tonight getting ahead of the poop.

Some diseases can also make poop smell different so it's worth trying to come up with a more accurate description before searching the Internet. Also take into account how you feel in general.

I've had poops that smelled bad enough to give perms to anyone in range. Does that count?

I’m not a poop or perm expert.

So, also not a poop expert, but I do know poop should smell like poop. If the smell of your dookies changes suddenly and doesn't return back to normal in the time it takes to pass a few meals, you should probably go see a poop expert. AKA, your doctor.

*edit - just to articulate the urgency here, GI problems can fuck you up in terms of discomfort - we've all been there - but some of them can kill you. Idk if any of the ones that can kill you are the same ones that change the smell of your shits, but that's where the poop expert comes in.

N... No?
No.
No, I'm pretty sure I haven't.

i've been to a hair salon that smelled like shit, does that count?

I worked at a paper mill shutdown one time. I ended up sleeping in my truck for four days in the parking lot because all the local places were full. It was a short shutdown so I took the first layoff and drove to a the next job. After I got a shower and something to eat my first shit smelled like a paper mill. The prompts that take me back to the 'good old days'.

Yes. But only after eating cut hair with perm chemicals.

I picked the wrong week to stop huffing hairspray.

Sometimes my dog takes a shit that smells exactly like Nair.

I've noticed that it sometimes smells like epoxy glue. I wonder if we're thinking of the same scent.

Stop drinking formaldehyde