As a Learning & Development Professional used to delivering courses this is very informative as I don't think we do enough to ensure that people with autism and ADHD are comfortable in training. My daughter has been diagnosed with AuDHD and finds going to uni classes stressful because of the many reasons you have mentioned. I've noticed some similar behaviors in myself too, such as anxiety about change in routine. Articles like yours are very helpful. I had no idea about the sensory discomfort my daughter experienced until I sat in on one of her sessions with a clinical psychologist during her diagnosis.