Yup, both my bad ear and my good ear ring, on and off. Of course, the ringing is worst in the AN ear, by far. But sometimes I notice tinnitus in my good ear, too. I just think it's because my poor brain doesn't know what to think about the screwy input it's getting from my ears, especially the bad one! I wouldn't worry - I don't think tinnitus means you have another tumor. Lots of people with NO tumors have tinnitus.