I developed mild tinnitus while in the military. I'd always been able to work with ear protection, but there are just sometimes where transients just hit unexpectedly and cause a bit of ringing. After I got out of the military, I always had a bit of ringing but, after I developed a sinus/ear infection in late 2009, it's gotten worse. Some days, obviously, are worse than others, but I've always got some ringing. Lately, I've gotten the little cat-bell ringing in my right ear, which has been a bit annoying, especially when I was blaming my kids for making the noise and it was really all in my head. I'm hoping to find something which will work for the short term, and possibly for the long term.