最常见耳鸣原因是hearing loss

我本人是audiologist. The most common known reason of tinnitus is hearing loss. Peripheral hearing (sensorineural hearing loss)发生变化时，中枢神经系统会compensate. This is one of the well accepted theories for tinnitus. 四十多岁就有听力损失有点早。一般到六十岁以后才开始下降。你的耳鸣可能跟听力下降有关。西医对这个没什么办法。当然其他原因也可造成耳鸣，如wax build up,eustachine tube dysfunction, otosclerosis, etc.etc., as well as stress, loud noise exposure. 一般病人睡觉不好，I would recommend melatonin. There has been a few studies and it actually works for some patient. Masking noises can be used. There are some free APPs for tinnitus noise. Remember, tinnitus is a symptom, not a disease. Try to avoid silence. 就先想到这么多.