ADHD Chatter 5 Signs Of High Functioning ADHD (Explained by a psychologist) | Dr Mark Rackley
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Nov 3, 2025 
Dr. Mark Rackley, a clinical psychologist with over two decades of experience in ADHD, dives deep into high-functioning ADHD. He explains how masking often hides genuine struggles and can delay diagnosis. The discussion reveals the exhausting nature of overcompensation and the emotional toll of rejection-sensitive dysphoria. Mark links loneliness to imposter feelings and explores the connection between high achievement and addiction. He also shares valuable insights on coping strategies and the risk of burnout, emphasizing self-validation and connection.
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Waiting In The Car Before Meetings
- Alex describes waiting in his car for two hours before meetings to avoid being late and triggering RSD.
- He says he can be focused in the meeting while being immobilised earlier in the day.
Appearance Versus Hidden Reality
- 'High-functioning ADHD' is an appearance that hides internal struggle and executive function problems.
- Mark Rackley warns the label pressures people to sustain an exhausting mask of competence.
Masking Is Exhausting Overcompensation
- Masking in ADHD equals extreme overcompensation: constant rehearsal, hyper-vigilance and emotional strain.
- Mark Rackley emphasises this sustained masking is exhausting and raises burnout risk.