Benign Ear Myoclonus: This condition is characterized by involuntary, rhythmic contractions of the muscles in the ear, leading to a fluttering sensation. It is relatively common and often benign, which makes it a likely explanation for the patient's symptoms.

Middle Ear Myoclonus: Similar to benign ear myoclonus but involves the muscles of the middle ear, causing a fluttering or clicking sound.
Palatal Myoclonus: Involuntary contractions of the palate muscles can sometimes be perceived as ear fluttering due to the close anatomical relationship between the palate and the Eustachian tube.
Eustachian Tube Dysfunction: Issues with the Eustachian tube, such as dysfunction or patency, can lead to sensations of fullness or fluttering in the ear.

Multiple Sclerosis: Although rare, multiple sclerosis can present with a wide range of neurological symptoms, including unusual sensory phenomena like ear fluttering, due to demyelination in the central nervous system.
Acoustic Neuroma: A benign tumor on the nerve connecting the inner ear to the brain can cause a variety of symptoms, including hearing loss, tinnitus, and potentially sensations of ear fluttering.
Temporal Lobe Seizures: Seizure activity in the temporal lobe can manifest with a range of unusual sensations, including auditory phenomena that might be described as ear fluttering.

Hemicrania Continua: A rare form of headache disorder that can involve autonomic features, including ear fullness or other unusual ear sensations.
Superior Canal Dehiscence: A rare condition where there is an abnormal opening in the bone overlying the superior canal of the inner ear, leading to a variety of auditory and vestibular symptoms.
Patulous Eustachian Tube: A rare condition where the Eustachian tube remains open, leading to symptoms that can include autophony (hearing one's own internal sounds unusually loudly) and potentially sensations of ear fluttering.