Welcome, floridama!
You are not alone in not noticing your child is gifted. Sometimes parents don't notice because: 1) they are also gifted but never really thought of themselves as such; 2) you tend to hang out with friends who are like you, so the other kids you've seen are probably also GT and you just thought they were the norm; 3) no problems at school or elsewhere to tip you off. Also, your DD says she's happy in school, so that's wonderful! You are lucky. Now that you know she's gifted, if any problems do start coming up (complaints of boredom, acting out), you will have a clue about where to start looking for answers.
Nope, not a horrible parent! (It's called GT denial around here.)
