The main symptom of vestibular-induced dizziness, i.e. vestibular vertigo, is vertigo, which may be accompanied by neurological symptoms such as nausea and vomiting, and usually manifests itself as a sudden onset.
1. Vertigo: the patient is self-conscious that he or she or things around him or her are rotating.
2. Nystagmus: If nystagmus accompanies an attack of vertigo, it is mostly a vibration in the vertical direction (i.e., upward and downward movement) or diagonally (i.e., movement in the diagonal direction).
3. Nausea and vomiting.
4. Tinnitus or deafness: Sounds may be perceived when there is no external source of sound, or there may be transient deafness.
5. Decreased appetite: the patient does not want to eat or eats very little.
6. Balance dysfunction: People with mild symptoms feel that they or their surroundings are spinning. In severe cases, the patient is unable to judge his/her position in relation to the surroundings, whether he/she is in the correct position with head up and feet down, or the exact spatial position of the things seen by the eyes, and thus is unable to walk correctly.