https://articlescad.com/could-....adhd-diagnosis-adult
ADHD in Adults Undiagnosed Living with a diagnosis of undiagnosed ADHD can be extremely challenging, resulting in years of self-doubt and low self-esteem. This can lead depression, mental health issues and even substance abuse. Adults are more difficult to diagnose than children. A thorough background is required, which could include a psychological exam and a discussion with family members regarding childhood behaviors. 1. Concentrating Problems People with ADHD have trouble staying focused.