Probably a bit neurotic but just wanted to see if these things were 'normal'. My son is still very young - 3 in about 2 weeks - but I recently had a meeting with his keyworker at his preschool, which he has attended since Sep 2012, that highlighted some things I an a bit concerned about.
This morning I Googled early signs of ADHD and some of the things in the 'inattentive' section stood out. I wouldn't really say he has hyperactivity.
The main one was 'reluctance to try/progress with a task requiring mental effort'. For example, he loves books and will happily sit and listen well if you read to him - but it specifically says this behaviour is not seen in activities that are enjoyed. However, jigsaws he is bored of - unless they are peg/hole types, or other easy ones - around 24-26 months he 'got them' and did many quite big ones without much help, but now he doesn't want to make the effort. If I am making biscuits with him, he will do the cutter but then try to pick them up or prod them on the baking sheet; seemingly out of boredom.
The teacher also mentioned he disrupts other children's tasks - not in a 'may I join you?' way but for the hell of it. She also said he drifts away from things without finishing and has to frequently be reminded to clear up & also what is appropriate behaviour. He often doesn't listen to me asking questions or to do something. In a supermarket he will wander off and get things off shelves or prod them - I keep having to tell him not to and to stay with me.
I can't decide if it's normal toddler behaviour (and a lot of it could be) or whether there is anything I need to be concerned about. The websites do mention a 'consistent for 6 months or more' test, so I'll see how things pan out at nursery as he hasn't been there that long yet.
Sorry for length - it would be good to hear other experiences.