Potential symptoms:

Inflammation of the sorcery system so the sorcery lobe in the brain and key components of the body for an individual's sorcery

Fever

Weakness

Lethargy

Symptoms specific to the individual

Typically it affects people 15 and younger. It's rare in adults, though usually more lethal in adults due to a fully developed sorcery system. It's typically a secondary infection that happens after another illness. General theory is it's caused by an inflammatory response festering in the sorcery system. It can also happen after a bad allergic reaction. Once you have it once, you will never have it again. It typically lasts 1 - 4 days depending on someone's base level inflammatory state and care

There are some things that can be done to mitigate spread since there's debate if you can catch it from someone who has it (the chicken and egg problem).

Quarantine a person in a room with the window cracked

Person whose sick should reuse the same dishes, the person doing the dishes should be immune or use disposable dishes

Masks for the sick person and for non-immune

Food that helps decrease inflammation

Uruha has this before back in the dojo at the same time Samura did. They were eight and twelve or thirteen when they had it. Uruha can't remember being sicker.

Fushimi's symptoms:

Fever

Weakness

Respiratory distress (can inhale his own smoke to clear it from the air)

Fainting

Numbness in his hands since he frequently reinforces them with his sorcery and he can emit smoke from his hands

Fatigue

Probably other things. Like if it was Hakuri who had it, He would likely have nosebleeds, numb and/or swollen hands, and his left eye would likely be inflamed. His palms would probably be discolored from inflammation too.

it started at work. i had late shift and i ate my dinner and a while after that i started feeling a little nauseous but i didn't think anything of it. just brushed it off and finished up my shift. at home i had the runs and at that point i thought it's probably bc my food was bad. i had salad that wasn't rly fresh anymore but i thought was still good enough.

i went to sleep and woke up in the early morning hours feeling extremely nauseous, like i never felt THIS nauseous before. no alcohol or food poisoning or stomach bug ever made me feel like this. i couldn't throw up tho but i also couldn't go back to sleep. or do anything rly so i just laid in bed and suffered for several hours. luckily i had nightshift that day (my shifts are a mess... they change every 2-3 days...) so i decided to just rest and hopefully feel better by evening. and i did. kinda. so i went to work. i didn't feel that great but i thought i would be fine, honestly! but before i even had my first break at 1 am i realized i couldn't do this. i had to rush to the toilet like 3 or 4 times bc i needed to throw up (i know, i'm stupid and should've left when it happened the first time. but i thought i'd be fine. spoiler alert: i wasn't!). so i went to my group leader, let him know i was sick and left.

at home i threw up again. several times. i tried to sleep but i felt too nauseous and my stomach was hurting and i didn't have any medicine for it. so i slept for a few hours and then got up to call my gp for an appointment. i was honestly wondering if i could even drive to the appointment bc i felt so bad. i managed tho and we figured it must be food poisoning from that salad. got a sick note for the rest of the week (like 4 days or so), was told to come back if it wasn't better by monday and got a prescription for some anti nausea meds.

i kid you not when i tell you that was the worst weekend of my life!

i did not eat anything for those few days bc i simply couldn't. i wasn't hungry anyways. all i could feel was nausea and stomach cramps. i would take the meds and they would knock me out completely for several hours. but most nights i woke up in the early morning, thinking this is it. this is how i'm going to die. alone, in my apartment. i genuinely contemplated calling an ambulance but i never did and i didn't think they could rly do anything for me at a hospital anyways; i just had to get thru this. some with some more medicine induced sleep, i got some more rest. and when i wasn't sleeping i was dreading the moments the cramps would start bc they were terrible things. they made me cry bc of how bad they were. i get horrible periods cramps (including vomiting and passing out) but even they didn't compare tho these stomach cramps. and the only painkillers i had at home were ibuprofen and i know you're not rly supposed to take them for stomach issues bc they can break down the stomach lining and we don't want that (good thing i didn't take them, it probably would've made everything even worse...).

the nausea was so bad, and made me dry-heave but i had absolutely nothing in my stomach to bring up bc i hadn't eaten in days. at some points it got so bad i had to make myself throw up for some sort of relief. but bringing up stomach acid and bile wasn't much relief.

so monday came and i went to see my gp again. she figured it wasn't simply food poisoning but gastritis, inflammation of the stomach lining, instead. she told me to come back the next day again for an ultrasound to check if there's smth more going on like gallstones or something. luckily that wasn't the case.

she also prescribed me stomach medicine i had to take every morning for a week or so and after a week of suffering i finally managed to eat some apples and soup. it took me lmost 2 weeks to recover completely. and even though all of this happened back in march, it was such a horrible experience i still remember like yesterday.

So I've been nauseous since mid-morning. Not sure why. My head starting hurting around the same time, so maybe a wannabe migraine? Anyway, when I went to the bathroom before my lunchbreak, I ended up vomiting. Just water, since I haven't eaten since breakfast, but still. I'm hoping my lunch and some fresh air here at the barn will help. I still have 3 1/2 hours left of my shift. 🤢

Here's a Chester butt to make you smile.

Anjelicawrites

Thank you darling! Am getting better thankfully with the healing powers of paracetamol!

Still, now all I can imagine is him sleeping sort of on me/my shoulder whilst I watch criminal minds or something, and when I’m yelling, “I knew it!” Or some deluded thing like that he just sort of jerks up and sleepily says, “That bastard…” every time. And each time it makes me laugh in fondness and I just kiss him on the head and lips in agreement, whilst he hums in thanks

1: the fatigue is only partially being sick and partially the meds

2: the "my limbs are shaky" is completely due to the meds