ds1 has always been a bit different but now ds2 is getting older i can see just how different he is. Although he is doing well at pre-school and forms loving relationships there are a number of things that make me think he could be on the autistic spectrum. He gets 'stuck' on certian details- like if we talk about his birthday he is not interested in anything except if he can have a party popper, he wants me to explain every road sign we see, when he goes to school we have to stroke a particular car (not ours!) on the way in. Most upsetting are his very intense tantrums where he is very distraught and it can take some time to work out what's wrong. He can also be agressive and intimidating and can't understand why that upsets his victim. We have been through a tough time as a family but I really don't think this is stress-related. Anyone with any experience out there?