ADHD Assessment in Swansea It can be difficult to diagnose ADHD. It is best to first speak with your GP and explain why you think you have ADHD. They should take your concerns seriously and refer you to an assessment. There can be long waiting periods for NHS ADHD assessments, https://titusxhnsv.thelateblog.com/30288399/8-tips-for-boosting-your-adhd-diagnosis-private-game