Wirelessly posted (droid)
What makes you think she's not gifted? Being gifted is not an IQ score. If she can achieve a lot, chances are she's gifted. Why can't a deaf kid be gifted? I don't think it's fair to say someone is an overachiever just because she's deaf.
Young people are still developing an identity. You don't know what choices she will make later in life. I was one of the kids that got labeled as being different and I turned out fine. Even reproduced.