This is just a small list of what could be possible.  These injuries could be diagnosed by a NPC healer or a PC cleric, if that cleric has the special ability of "Treat Injury" or "Treat Illness". The remedies are suggested. With the skill, the healer or cleric could correct the problem if they have enough MP to use the skill, or they can send the player on a quest to retrieve items, like for the ointment. The emotes would appear over the players head, letting them know that something is wrong with them. These emotes will continue, possibly ever 20 minutes or so, until the player seeks medical attention. The random illness is just something that could happen, without any action taken on the players part. If you like these examples, I can work on a longer list. I just wanted to see how this is receives before I do a lot of research.  :)
Injuries and Illnesses
Injury Cause Symptoms Emote Who Treat Remedy
Fractures Blunt Trauma *there is a bone sticking out of the skin* Healer, Cleric Make a splint
Concussion Blunt Trauma *sways dizzily* Healer, Cleric Bed Rest (10 minutes)
Gash Sharp Object *bleeds profusely* Healer, Cleric Stitches
Dislocations Impact *appears to be in great pain* Healer, Cleric Joint is forced back in place
Impaled Arrows *has an arrow protruding from body* Healer, Cleric Surgery
Burns Walking through fire *winces in pain and has skin pealing from a red area* Healer, Cleric Make ointment
Bruise Blunt Trauma *has a blue and purple mark on skin* Healer, Cleric Rest (10 Minutes)
Carpal Tunnel Syndrome Writing (scribe?) *has numb fingers and a swollen wrist* Healer, Cleric Make a splint
Bee Sting Bees *has small, swelling bumps all over body* Healer, Cleric Make ointment
Tick bite Running through dense bushes or forests *has a swollen, dark purple insect attached to their body* Healer, Cleric Pull Tick out
Nose Bleed Fist fight *has blood dripping from nose* Healer, Cleric Applies pressure
Poison Ivy Running through dense bushes or forests *has a spreading rash over their body* Healer, Cleric Make ointment
Pulled Hamstring Running Constantly *limps* Healer, Cleric Make ointment
Groin Injury Random *limps constantly* Healer, Cleric Bed Rest (10 minutes)
Frost Bite Running in the snow *extremities are numb and turning black* Healer, Cleric Make ointment
Sprained Ankle Running *limps* Healer, Cleric Bed Rest (10 minutes)
Sword Elbow Random, too much sword use *winces in pain when swinging a sword* Healer, Cleric Bed Rest (10 minutes)
Bow Elbow Random, too much bow use *winces in pain while using a bow*
Illness Cause Symptoms Emote Who Treat Remedy
Flu Contact *coughs and hacks, appears flushed* Healer, Cleric *potion
Hives Allergic reaction *appears to have bumps all over their skin* Healer, Cleric *potion
Cold Contact *coughs constantly* Healer, Cleric *potion
Migraine Random Illness *winces at light and loud noises* Healer, Cleric *potion
Hangover Too much alcohol *turns a sickly green at the sight of food* none 20 minutes duration
Botulism Bad Food *vomits and looks around for an outhouse* Healer, Cleric *potion
Chicken Pox Contact *has small, red bumps all over body* Healer, Cleric *potion
Constipation Random Illness *holds side as if having a cramp* Healer, Cleric *potion
Food Allergies Random Illness *begins to wheeze and hold throat* Healer, Cleric *potion
Food Poisoning Random Illness *has an upset stomach and runs to the outhouse* Healer, Cleric *potion
Lice Random Illness *scratches their head constantly* Healer, Cleric *potion
Lyme Disease If ticks aren't taken out *feels tired and achy all over* Healer, Cleric *potion
Pink Eye Random Illness *appears to have very bloodshot eyes* Healer, Cleric *potion
Pneumonia Not seeking aid with flu or cold *struggles to breathe* Healer, Cleric *potion
Urinary tract infection Random Illness *Rushes to the outhouse* Healer, Cleric *potion
Blood Poisoning Not seeking aid with a gash *has dark red streaks coming from a gash* Healer, Cleric *potion
* The potion could be RPed out or could be made into a quest for the ailing player
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