My 5 year old son has been diagnosed with gdd, autism and is non verbal I started spotting signs around 18 months, he'd not yet said a single word, he would stim, spin around, lining toys up, loved anything that spins, walk on tip toes, flap his hands, make vocal noises, now I have a little girl too who is 2 in October, she has a few of words like do when she needs help, ball, cat, go, daddy, baby. She has pretty good understanding for instance if I tell her something is dirty she will go and throw it in the bin or laundry basket, if I ask her to fetch her nappy or shoes she will, she will help tidy up, wipe down table after eating etc.. but I'm also seeing signs in her that she could possibly have autism too, she also makes vocal noises, flaps hands, walks on tip toes now and again, spins, likes pairing toys, has little screaming melt downs and throws herself to the floor over very small things that irritates her, am I looking to much into these things as I'm worried she may have it too or should I raise my concerns? She's presenting differently to my son as he's been mentally aged as a 18 month old where as my daughter apart from speech I'd say is on target for her age and didn't have any clear signs of regression. Maybe irrelevant too but she was born nearly 6 weeks early and was very tiny which I believe can delay her learning slightly