I need some advice on my daughter, she's 3 years old and she can be brilliantly behaved and then other times she can be angry and seem like she's frustrated. She will randomly shout but not like scream she will randomly just go 'ahhh' really loud a few times? She also can't sit still for longer than 10 minutes if that! She doesn't follow instructions properly when I know other children her age that do... I mean I don't know if it's normal or something needs addressing but my mum thinks I have adhd and iv read up that it can be normal to run down into families.. so need some advice on what to do?