Low level/continuous pain tips for writing
Want to avoid the action movie effect and make your character's injuries have realistic lasting impacts? Have a sick character you're using as hurt/comfort fodder? Everyone has tips for how to write Dramatic Intense Agony, but the smaller human details of lasting or low-level discomfort are rarely written in. Here are a few pain mannerisms I like to use as reference:
General
Continuously gritted teeth (may cause headaches or additional jaw pain over time)
Irritability, increased sensitivity to lights, sounds, etc
Repetitive movements (fidgeting, unable to sit still, slight rocking or other habitual movement to self-soothe)
Soft groaning or whimpering, when pain increases or when others aren't around
Heavier breathing, panting, may be deeper or shallower than normal
Moving less quickly, resistant to unnecessary movement
Itching in the case of healing wounds
Subconsciously hunching around the pain (eg. slumped shoulders or bad posture for gut pain)
Using a hand to steady themself when walking past walls, counters, etc (also applies to illness)
Narration-wise: may not notice the pain was there until it's gone because they got so used to it, or may not realize how bad it was until it gets better
May stop mentioning it outright to other people unless they specifically ask or the pain increases
Limb pain
Subtly leaning on surfaces whenever possible to take weight off foot/leg pain
Rubbing sore spots while thinking or resting
Wincing and switching to using other limb frequently (new/forgettable pain) or developed habit of using non dominant limb for tasks (constant/long term pain)
Propping leg up when sitting to reduce inflammation
Holding arm closer to body/moving it less
Moving differently to avoid bending joints (eg. bending at the waist instead of the knees to pick something up)
Nausea/fever/non-pain discomfort
Many of the same things as above (groaning, leaning, differences in movement)
May avoid sudden movements or turning head for nausea
Urge to press up against cold surfaces for fever
Glazed eyes, fixed stare, may take longer to process words or get their attention
Shivering, shaking, loss of fine motor control
If you have any more details that you personally use to bring characters to life in these situations, I'd love to hear them! I'm always looking for ways to make my guys suffer more write people with more realism :)
