my dd is nearly 7 and although very chatty with her friends and me/my dh , she refuses to speak to any adults, including my mum and all teachers. she is very shy, but im thinking she may have selective mutism, where the child shuts down and cant communicate in certain situations/with certain people. she sometimes smirks and squeaks but wont talk, making her look rude, at times its very frustrating as at home she is v happy and loud, also with her friends she is v confident. Anyone have any experience of selective mutism at all???