MY 3 YEAR OLD ds only just been diagnosed, after over a year and a half of me telling my health visitors there is something not right with him! DS is now on iron medication, but his behaviour hasn't improved, i hear that if it is left too long they can be left with permanent behaviour problems! I was so angry when I found that out, I just kept getting fobbed off, and that he was a normal little boy! Anybody else's little one had this and has their behaviour improved?