Hello my name is Kyle and I started to experience Tinnitus about 3 weeks ago. I was battling a sinus infection. One night I started to develop a ringing. I thought it would go away overnight but it never did. I went to an ENT and he said it was coming from fluid behind my ear drum. The tinnitus only is in my left ear. Has anyone else here developed tinnitus from an infection? If so, has it calmed down since you developed?