If your parents are concerned and if they are informed people, they certainly will help you. Even without you telling them, and starting the conversation. I know how it feels like, depending on older people to get help, have to tell someone else in order they can get help for us. It would be much more easier if we could get profissional help on our own without going through other people.
I hope they make a move son. And I hope you help them in the proccess. Hughs.