My son was diagnosed with ADHD/ASD last year . He has high levels of anxiety which he is on medication for . His predicted GCSE results are all 3s which is causing quite a lot of anxiety in itself . I'd like to withdraw him from science as this subject causes the most stress , the school and senco say they can't because it's a core subject . Any advice ? I could just not send him on the day of the exams I suppose