The ringing in the right ear has been with me at least intermittently since before adolescence, but has been constant since college or so as the hearing deteriorated to it's current point of near-nothing. Hearing tests in '01 and '07 showed at least some high-frequency hearing in the right remained, but by '10 it was all gone. Thankfully, my left is still more-or-less normal. But I am wondering as I hit 35 if the left ear will start to go too.

The ringing is not super-loud unless I'm sleep-deprived (yeah, and we have a toddler and another baby on the way), but other than that, it's just a part of life. Caffeine and salt regulation never helped with dizziness/vertigo or ringing, so I gave up trying.

The annoyance for bike commuting is that I can't hear cars on my right (usu. idling parked cars) and, as you have stated, my directional hearing is non-existent.