My ds is 5 and is a sunny giddy rough and tumble boy the youngest of 3 boys (ages 17and 14) .he's never been quite or shy child but this last few weeks he's driving us mad with his bad behaviour moody ,naughty ,hyper,sulky and temper tantrum's I don't know what to do with or understand why the sudden change in behaviour. We've not had any change in the family he's very happy in school with lots of friends . I just started the traffic light system and trying to be more strict not letting him away with much but I suppose as the youngest he's been spoiled . Any help would be very much appreciated.