Paroxysmal atrial tachycardia may be caused by several different things. The fast rate may be triggered by a premature atrial beat that sends an impulse along an abnormal electrical path to the ventricles. Other causes stem from anxiety, stimulants, overactive thyroid, and in some women, the onset of menstruation.
Sudden hearing loss is associated with vertigo in between 20 to 60% of patients (Rambold et al, 2005). The wide spread probably depends on what you define as vertigo -- a little bit of dizziness, or a profound sensation of rotation. Patients with vertigo also usually have worse hearing (Niu et al, 2015).
Dizziness symptoms Possible causes; When standing or sitting up suddenly: sudden drop in blood pressure (postural hypotension) Feeling off-balance, losing some hearing, ringing or other sounds in your ears (tinnitus) inner-ear problems: Feeling off-balance or like things are spinning, feeling or being sick, sometimes after a cold or flu: labyrinthitis