DS is really struggling with online learning, difficulty concentrating and can't focus for long without jumping about. Have researched ADD and pretty sure that's what it is. He's already dx with dyslexia. What is the best way to get him assessed? My DD has ASD and it took a lot of pushing and about a year of jumping through hoops with CAMHS to get her diagnosed. Any advise/ dos and don'ts? He is 12 and we are in London.