One day in winter night my left ear suddenly felt like opened and mild ringing has started I thought it was due to cold air......after one and half month...the ringing became high in left ear...when I talk , my inner voice is hitting left ear...when I went to Ent specialist my test results came normal for hearing....but doctor said I have heavy nasal septum deviation in left nose and also tonsils..he said due to septum deviation,tinnitus may occur....but never heard that nasal septum deviation can cause tinnitus....but important thing is..my left side nose is deviated,,my voice is hitting left ear,, and ringing in ear is also left only.