Hi. I am getting worried about my 4 year old. He stims a lot when he's excited (flaps hands and jumps up and down). He also 'zones out' sometimes when he does this. Today he has watched the same episode of a TV show 6 times. I am getting concerned that he is on the spectrum. His flapping comes and goes, sometimes more pronounced than others and comes in phases - I think when he is developing. I have spoken to preschool and they are not concerned - he is sociable, works well with other children, shares and understands emotions. Should I speak to the health visitor about this? Could he be on the spectrum and need support or would you leave it? Anybody who has experienced the same I would be grateful :)