It is estimated that over 2.5 million people in the UK have ADHD, and many have to wait over two years for a diagnostic assessment. According to an article [here], over half a million people are waiting for an assessment. Helpfully, the author also shares nine common ‘warning signs’ that someone may have the condition. This may indicate whether or not you or your partner could have ADHD. The NHS also provides some useful information about coping with ADHD [here].