I did a quick google on
CAPD , most of the info out there is about babies - and young children, I couldn't find much on adult onset.
Asking a question - -How much use of Portable Electronic devices do you use (walkmans, IPods, CD Players)? Continual usage at high volumes has been proven (at least according to the last package of headphones I bought) some hearing loss, that with time can be reversible.
Hearing loss and Walkmans
Or do you spend a lot of time in loud environments?
Noise Induced Hearing Loss
Hearing Loss from WebMD
Can you get to a hearing specialist?
GOod Luck