If your daughter is already reading to learn, then I'd guess she's probably on the gifted spectrum somewhere. I'm glad you found this forum, it's a great resource. I just recently started my own wondering-about-gifted journey and two other resources I've found very helpful are:
www.hoagiesgifted.org
5 Levels of Giftedness by Deborah Ruf

Just out of curiosity, will your daughter be going to kindergarten in the fall?