Dizziness and tinnitus may be caused by overwork, high blood pressure, Meniere’s disease, sinusitis and so on. 1. Overexertion: long time high load work, long time staying up late, nervousness and anxiety, excessive pressure and other physiological factors lead to lack of rest of the brain and other tissues, so this symptom appears. 2. High blood pressure: when blood pressure is too high, the impact on the arterial blood vessel wall increases, and cerebral edema, cerebral hernia, and even blood vessel rupture and bleeding can easily occur, resulting in dizziness, swelling and tinnitus due to the increase of intracranial pressure. 3. Meniere’s disease: the inner ear lymphatic reflux disorder and other factors lead to the membrane labyrinth fluid expansion, vestibular dysfunction, so there will be tinnitus, vertigo, brain swelling, hearing loss and other symptoms. 4. Sinusitis: a large amount of inflammatory material secretion after sinus inflammatory lesions, more than the sinus volume after spillage, resulting in blockage of the Eustachian tube pharyngeal opening and other parts of the pharyngeal tube, so this symptom will appear. Dizziness and tinnitus may be related to a variety of factors, it is recommended to consult a doctor for a clear diagnosis.