delayed? autism? or ok? i dont know anymore

my son turned 3 in october and has some signs of delay but moved to different area they sayinf hes fine
basically he couldnt sit up until year old never crawled and walked at 21months
at his 2year assement the healthvisitor was concerned as he hand no hand eye co-ordination which has now improved hence the pead saying hes fine now
but he lacking in speech says very little the most hes ever said is mummy look which isnt very clear and most people cant understand him at all. he has bad tantrums in which he will throw himself on the floor and if anyone goes near him he will kick them hes also attack with items his holding most time his like this if normal routine changed.
he rarely plays with toys and gets scared if anyone at nursery etc goes near him , he has no idea of safety i have to watch him like a hawk

[Eileen Roscoe, PhD]

Although your son has shown signs of motor delays, it sounds like he is receiving early intervention services and has made some progress, which is great. However, the social difficulties that you describe (his problem behavior when individuals try to get close to him) are concerning and are consistent with an Autism Spectrum Disorder. Therefore, I recommend that you seek the assistance of an individual who specializes in the diagnosis of Pervasive Developmental Disorders so you can get an accurate diagnosis for your son. A diagnosis will allow you to identify appropriate services and supports. However, diagnosis alone does not suggest an appropriate intervention. Therefore, my recommendation is for you to work with school personnel on a plan to improve your son’s social skills and to decrease problem behavior. I recommend that you seek the support of a Board Certified Behavior Analyst, who would be able to conduct the appropriate assessments and to assist in developing a behavior plan. Please visit the website of the Behavior Analysis Certification Board (http://www.bacb.com/) where you will find a directory of service providers.

[rebbeccaf]

forgot to mention he walks on his toes too which i did as i child as i had tight tendons but this has been ruled out and takes along time to walk anywhere although not sure if low ferritin levels contribute to this. he has odd habit of flickering his eyes or scrunching them shut aswell as freaking out over slightest thing loud noise or cars going past. he never keeps his clothes on has to take them off