I really have no idea if I'm just being paranoid or if there is something worth pursuing but my youngest son just doesn't seem like he is developing like he 'should' be. He is now 2 1/2, 3 in March and doesn't really talk, doesn't really interact with other children except his brother, is still a bit wobbly on his feet and can't walk for very long without either falling over or getting down and crawling. He can't really use pens/pencils, or feed himself either, tends to just wave it around and I have no idea if I should be concerned or not. My eldest son seemed to hit all of his 'milestones' right on time and is doing everything he 'should' be able to at this stage but my youngest isn't and I don't know if he is just taking his time or if any of this is sounds like it could be something more. I know all children are different and develop differently, I don't want to compare him to his brother but I don't want to find that something is wrong in 2 years time and find that I could have helped him sooner. He is an extremely bubbly, sunny child, always laughing and smiling, sometimes for no reason at all and gets excited really easily. He also doesn't seem to react much to pain (doesn't cry when falling over, etc..), but he gets really upset if we shout at him! I would really appreciate any input from any parents with children with similar symptoms, or just some advice really, thanks :D