DD has a speech delay - 21 months and nothing just strange noises lol. As DS2 Has asd she has already been referred which will take 4-5 months. She can communicate ok - understands what I say to her i.e. bedtime, nappy time, coat on, yes and no. She can also indicate when she wants something from me. I have noticed that when she makes her noises - 'ga' so far she twists her tongue around. Has anyone come across this before>?