Our Daughter is 11 and was diagnosed within a few days of birth. She is the most normal, sassy, fun 11 year old. She is very short (54 inches) but is on Growth Hormone to help that. She started it in June of 2016 and since then has grown 4 inches so it's working. The Endocrinologist thinks she may hit 5 feet! I'd be OK with that for sure. School does not come easy to Krysha. She has needed extra help and also get tutoring. She has a bit of ADD and takes medicaiton for that which does help. The Dr's initially told us that any chromosomal abnoramality can cause learning issues. Honestly, I don't know if it's the deletion or just her. Meaning, if she'd never been diagnosed, we would just think school is tough. However, since we did know, we had her in the best accredited daycare we could find and have tried to give her as many advantages as we couild.