Welcome to AllDeaf!
Sounds like your parents are in denial.
When people have a kid that's deaf and they don't immediately accept it, they will usually try to find other things to blame for their child's deafness.
In your case, you've been deaf for years... why now?
I'm glad that you've accepted that you're deaf. That's something to be proud of. If your parents start freaking out, then they need to learn to accept you for who you are.
Sure, cochlear implants could be an option... but is it something you really want? Would you rather wear hearing aids or use sign language interpreters?