Condensation, from your description of the problem I don't think you'll have too much drama with it.
I've got some hearing loss (up to 40 dB at certain frequencies in one ear) plus some tinnitus, but still pass the class 1 medical OK.
Have you sat the hearing test before? The main thing I've found with tinnitus is that the ringing in your ears gets really loud in the quiet booth with the phones on and masks some of the beeps of a similar frequency. However, they play a number of different frequency tones, so it won't affect the full range of your hearing.
If you don't have a problem hearing radio calls and intercom talk, and normal conversation is OK, you should be right, I'd suggest.
If you do fail the beep test, all is not lost, as you can see a specialist who can do a speech discrimination test, among other things, and say whether you're good to go or not.
Some tips that may be useful - schedule your medical for the morning, and don't expose yourself to loud noise before doing it.
Make sure you don't have a cold, blocked ears etc when you go.
Don't sweat on it too much, and good luck.
'The bells, the bells ... '