Head Tilt - Idiopathic Vestibular Disease

A head tilt is a condition where an animal's head is tilted to either side. The most common cause is a disorder of the vestibular system, but there are other causes like abnormal tissue growth, bacteries or infections of the inner ear.

Examples of the head tilt in animals:
cat with head tilt
dog with head tilt
rabbit with head tilt

The mutation would not appear at birth. Instead, it could appear randomly between the age of 3 months to 1 year and 11 months (this may change, as the condition in real life can appear anytime). It would not be a passable mutation.

I think that a lion with this mutation could die randomly from the day the mutation starts to show to 16 years, although it would not be likely for the lion to die too early, and it would be quite rare for the lion to reach 16 years of age. All of this information can change! This is just how I imagine it would be.

Symptoms: stumbling, lack of coordination, constantly falling over, inability to focus, circling and possible nausea and vomiting.

If a lioness had this mutation, they would not be able to hunt, and if they were a lion then they would not be able to patrol or be set as a king. As a cub, they would fail almost every time in the cub training due to their lack of coordination.

Maybe the lion could stay with the broodmother? Instead of creating a whole new role (for protecting head tilted lions), I think it would be best if the lion with head tilt could be assigned again under a broodmother! (of course they wouldn't be able to until the mutation appears!) -KiwiBerb

And here are a few message ideas:
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"You decided to check up on [Name] and noticed that they started acting weird. They were walking in circles and they couldn't hold an upright posture. You shrug it off and hope that it will be better tomorrow." - Day 1

"[Name] starts heading towards you but falls over. When they stand up you realize that their head is tilted to one side. You start thinking that something is really wrong. . ." - Day 2

"After two days, [Name] still wasn't looking better. They kept complaining about feeling nauseous. You wish there was something that could make them feel better." - Day 3

Please tell me your opinions on this! And feel free to draw some art concept if you'd like.