Vestibular Migraine: This condition is characterized by episodes of vertigo, often accompanied by headache, sensitivity to light and sound, and sometimes, nausea and vomiting. The term "cloistered" might imply a confined or enclosed space, which could exacerbate or trigger symptoms in individuals prone to vestibular migraines due to visual-vestibular mismatch or other triggers.

Benign Paroxysmal Positional Vertigo (BPPV): This is a condition related to the inner ear where small crystals become dislodged and cause brief but intense dizziness. Being in a confined space might increase the likelihood of experiencing positional changes that trigger BPPV episodes.
Anxiety or Panic Disorder: Being in a cloistered environment could exacerbate feelings of claustrophobia or anxiety, leading to symptoms of dizziness due to hyperventilation or panic attacks.
Inner Ear Infection (Labyrinthitis): An infection of the inner ear can cause dizziness, vertigo, and balance problems. The term "cloistered" might imply a setting where infectious diseases could spread more easily.

Stroke or Transient Ischemic Attack (TIA): Although less common, dizziness can be a symptom of a stroke or TIA, especially if accompanied by other neurological deficits. It's crucial to rule out these conditions due to their severe consequences.
Multiple Sclerosis: This autoimmune disease can cause a wide range of neurological symptoms, including dizziness and vertigo, especially during relapses.
Cardiac Arrhythmias: Certain heart rhythm disorders can lead to reduced blood flow to the brain, causing dizziness or lightheadedness.

Meniere's Disease: A disorder of the inner ear that causes episodes of vertigo, ringing in the ears (tinnitus), hearing loss, and a feeling of fullness in the ear. It's less common than other causes of vertigo but should be considered in the differential diagnosis.
Mal de Débarquement Syndrome: A rare condition characterized by a persistent feeling of swaying or rocking after being on a boat or other vehicle, which could potentially be triggered or worsened by being in a confined space.