My lovely little 5 year old boy (who has recently been diagnosed with ADHD and ASD) appears to he very anxious at the moment. He keeps saying his 'tummy hurts'. We've taken him to the GP and she said nothing appears to be physically wrong with him. He's been waking in the night, and saying he's worried about being sick (he saw a friend of his be sick a fortnight ago). Please help advise me on how I can support him with this? I've tried talking it out with him. What else can I do to help him? Thanks.