
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.
Collapsing After The Day
- Alex says externally he smiles and achieves, but at home he collapses, falls to the floor and cries.
- This shows the cost of masking: emotional release once the mask is removed.
Achievement Can Trigger Emptiness
- Achievements often bring terror, emptiness or imposter feelings for people with high-masking ADHD.
- Mark Rackley links this to low self-worth despite outward success.

