I'm 25, I've had light ringing in my ear for as long as I can remember, I
thought it was normal, then I found out it wasn't. I also started playing
drums last year, I used earplugs a lot but didn't put them in all the way,
sometimes not at all. Then I reached a point where I was -really- noticing
my tinnitus, the thing is I don't know if its actually got worse, or if
its all psychological and I'm just much more aware of it now... Throughout
my life I've gone to about 50 loud rock concerts without protection and
although I've listened to music louder than I should have in my earphones,
I don't think I did it more than most other teenagers, etc..

But now I have 15db custom earplugs that I wear at all times when I'm
playing music or at concerts, I don't blast my headphones anymore..
I don't really notice my tinnitus much unless I put my headphones
on, or if I'm lying down on my side which blocks an ear. But when I do
notice it, I notice it a lot, and it upsets me, I wish it wasn't there,
and I want to do everything possible so that it doesn't get worse.
I don't know if this is relevant or anything.. but my tinnitus sounds like
the hum from a tv screen, but lower pitched, and I've gotten my hearing
tested and its above average at all frequencies. So,

A. what are the odds that this is noise induced tinnitus
B. what are the odds that it will get worse, perception or reality
C. what can be done to prevent this?
D. my ear block up a lot, I plug my nose and 'pop' them every now and then,
  kinda like when you yawn. when I swallow hard I get a sound in my ears,
  i think I have a sinus problem, could this have something to do with my    
tinnitus?

thanks