Our 4 year old does a humming sound when she concentrates whilst playing and drawing etc. Its like a ooom noise. She has being doing it for a few years now and we have just got use to it as the norm. She has just finished nursery and has now started in reception. Yesterday in school the TA told her she must stop making her noise as it's distracting the other children. This TA has helped in her nursery class and said nothing. My wife js planning on speaking with her teacher after school on Thursday. We knew it would become a problem once she started proper school but thought it would be phased out with time. I don't believe she is autistic or has Adhd as she has no other characteristics linked to these conditions. I was wondering whether anyone else has experienced this and what you did?