THE BODY LANGUAGE OF FEVER & NAUSEA

Skin & Temperature

Skin alternates between clammy and burning

Deep internal warmth

Sudden chills while sweating

Clothes feel wrong, either too heavy, too tight, too warm, not warm enough, etc.

Goosebumps even in a warm room

Face flushed, ears hot, neck damp

Head & Senses

Head feels pressurized or stuffed with cotton

Eyes ache when moving

Nose stuffed (on either one side, or both)

Ears ringing or deaf on one side

Lights are too bright/sharp

Sounds blur together

Food smells gross

Room feels tilted or surreal

Focus slips mid-thought

Food/water has an aftertaste

Stomach & Core

Nausea that comes in waves

Swallowing feels deliberate, effortful

Dry swallowing, dry throat—dry everything

Saliva thickens or pools suddenly

Abdomen tightens

Hunger exists but is nauseating at the same time

Body curls inward without thinking

Mouth & Throat

Tongue feels coated

Taste turns metallic, bitter, or flat

Lips dry; licking them doesn’t help

Gag reflex hair-trigger sensitive

Breathing through the mouth makes it worse

Movement & Posture

Barely any movement

Sitting becomes slouching, then curling

Standing too fast triggers instant nausea/dizziness

Hands brace on thighs, counters, walls

Feet shuffle; balance checked constantly

Body seeks cold surfaces or firm pressure

Voice & Speech

Voice dulls or drops in volume (due to plugged nose and raspy throat)

Words come slower

Sentences trail off unfinished

Irritation spikes easily (even if people are being nice)

Delayed responses

Apologies come out automatically (“Sorry. Sorry.”)

NOT ALL “SICK” FEELS THE SAME

Fever (infection-based):

Comes with chills + heat

Mental fog, slowed reaction time

Body aches feel deep, joint-based

Thirst increases, appetite drops

Sleep is restless, sweaty, unrefreshing

Colds / Flu:

More head pressure, sinus heaviness

Heavy cough, sore throat

Heavy fatigue

Fever may be mild or absent (especially colds)

Chronic Illness Flares:

Pain is familiar but still intense

Less panic, more resigned

Symptoms stack (fatigue + nausea + pain)

Character may ration movement and speech

Recovery expectations are lower

Menstrual Cramps:

Pain pulses rhythmically

Heat helps

Nausea tied to motion and smell

Sensitive emotions (more prone to snapping, saying things they regret)

Body feels heavy

Stress-Induced Nausea:

No fever, no chills

Jaw tension, shallow breathing

Nausea spikes during stillness

Relief when distracted or moving

These differences matter. They change how a character reacts, not just how they feel.

So yeah, hope that helps. You don't need vomiting on the page every time. Sometimes being sick is feeling off-key, or sometimes it's quiet recovery. It varies. The symptoms are one part of your story, the rest is up to characterization and plot. Why is illness relevant to your story? Why is this character sick, and how is it different from another character? You can have a lot of fun with this.