STOP DOING THIS IN INJURY FICS!!
Bleeding:
Blood is warm. if blood is cold, you're really fucking feverish or the person is dead. it's only sticky after it coagulates.
It smells! like iron, obv, but very metallic. heavy blood loss has a really potent smell, someone will notice.
Unless in a state of shock or fight-flight mode, a character will know they're bleeding. stop with the 'i didn't even feel it' yeah you did. drowsiness, confusion, pale complexion, nausea, clumsiness, and memory loss are symptoms to include.
blood flow ebbs. sometimes it's really gushin', other times it's a trickle. could be the same wound at different points.
it's slow. use this to your advantage! more sad writer times hehehe.
Stab wounds:
I have been mildly impaled with rebar on an occasion, so let me explain from experience. being stabbed is bizarre af. your body is soft. you can squish it, feel it jiggle when you move. whatever just stabbed you? not jiggly. it feels stiff and numb after the pain fades. often, stab wounds lead to nerve damage. hands, arms, feet, neck, all have more motor nerve clusters than the torso. fingers may go numb or useless if a tendon is nicked.
also, bleeding takes FOREVER to stop, as mentioned above.
if the wound has an exit wound, like a bullet clean through or a spear through the whole limb, DONT REMOVE THE OBJECT. character will die. leave it, bandage around it. could be a good opportunity for some touchy touchy :)
whump writers - good opportunity for caretaker angst and fluff w/ trying to manhandle whumpee into a good position to access both sites
Concussion:
despite the amnesia and confusion, people ain't that articulate. even if they're mumbling about how much they love (person) - if that's ur trope - or a secret, it's gonna make no sense. garbled nonsense, no full sentences, just a coupla words here and there.
if the concussion is mild, they're gonna feel fine. until....bam! out like a light. kinda funny to witness, but also a good time for some caretaking fluff.
Fever:
you die at 106F (40.5C). no 'oh no his fever is 107F!! ahhh!" no his fever is 0F because he's fucking dead. you lose consciousness around 103, sometimes less if it's a child. brain damage occurs at over 104.
ACTUAL SYMPTOMS:
sluggishness
inability to speak clearly
feeling chilly/shivering
nausea
pain
delirium
symptoms increase as fever rises. slow build that secret sickness! feverish people can be irritable, maybe a bit of sass followed by some hurt/comfort. never hurt anybody.
fevers are a big deal! bad shit can happen! milk that till its dry (chill out) and get some good hurt/comfort whumpee shit.
keep writing u sadistic nerds xox love you