Dad

We have a wonderful 5 year old boy. He's very lively and generally happy but he has been increasingly anxious at school - worrying about understanding lessons and various aspects of conduct. There have also been some pressures at home with the family dog (who he adores) recently becoming ill with cancer. Over the last week he has very rapidly developed symptoms that look like OCD. He has been asking questions about everything and confessing to habits eg “I think I ground my teeth just now, is that OK?” “I just rubbed my eyes twice - is that OK?” “If I walk like this is it OK? “I just used a funny voice - is that OK? Am I in trouble?” He will not let it go until he has been reassured several times and even then it comes back moments later. Sometimes we explain things to him and when he is stressed he just gets more anxious and says: "Do I need to know this? Do I have to remember all this? Just tell me what I need to know" He has also wanted to tell us about intrusive thoughts eg “I am sorry I was thinking about kicking you earlier”. and tonight he started describing some new obsession with symmetry - "I like it when its fair - there is one here and one there" etc Whilst some obsession is consistent with his character the sudden scale of this has knocked us (my wife and I) for six. We went to the GP but he didn't perceive a problem and said he was too young to be referred to CAHMS. Obviously we want to deal with this right so that he can get it under control and it not become an established problem for him. Any help / advice greatly appreciated!