May be that that she is not ready. My son who is now 17 years old did not talk till he was 2 years old. He did not walk till he was 16 months, loved his walker and to hold on to our hands. He also like when we carried him in the backpack everywhere.
He was born full term, normal weight but he did things in his own time. HE still is like that. He is now 17 years old. Senior in High School and off to college soon. Played football, wrestled, did karate, sings in the varsity choir, started piano in 1st grade, now plays the guitar, very involved with many volunteer and community activities.
If you are in McHenry County call SEDOM Special Education District for McHenry County in Woodstock. They will give you very good advice and do some testing right at there school. I had my son tested there for his hearing after he had tubes in his ears. No cost to me. They also can help you get in touch with the right Doctors and therapists if needed.
Another thing you can try is music. Making up songs to different tones. If you play an instrument even better. Many children will react very well to music. If you have a piano sit down with her and make up things together.
Another way to communicate is signing. Children who are deaf learn signing at an early age. Even though daughter is not deaf she may find it easier to share though signs. Easy signing is available on line or with video tapes.
The best way is take things slow. Remember she is a precious gift from God and she needs all your love. Lots of hugs and telling her it's Ok really helps.
Blessings