Hi my son is 15 months now and has global development delay , he has learnt to sit the last 2 months but still cant stop himself from fallen . I got his visual brain pattern test which shows his sight is off a 3 month old , there is nothing wrong with his eyes though , his mri scan came back normal but he is now being sent to a neurosurgeon for more test , he still wont stand and still everything in his mouth . Gets to me at times that people wont take what you are saying about him as he looks like any other child his age and people keep saying he'll grow out of it . I've come to terms that there is problems and i'm happy as long as he is . He is to be fitted with pedrio boots and a buggy as he wont sit straight in it . One of this blood test came back not normal , its a long chain fatty acid ( which is rare ) so he wasnt allowed to eat or drink and had to be re tested so waiting on the result now . Its just tiring all the running about , he also had low muscle tone in arms and legs , none of his doctors or anyone he sees can work him out as he seems like it could be this or that and once we think we no what is wrong , he does something else , only thing that seems to save him alot is cos he is so smily and very happy wee boy . If anyone else no's what i mean by all this and been through it would love to hear back from you , thanks