The problem
Your child got an anxiety diagnosis, started treatment, and got a little better, and then plateaued. The worry keeps coming back. The therapy helps and then stops helping. Everyone's working hard and the needle won't move, and no one can say why.
Often the reason is that the anxiety is only half the picture. Underneath it, frequently undiagnosed, is ADHD, quietly manufacturing the exact experiences that produce anxiety in the first place. The missed deadline, the forgotten promise, the social misstep, the RSD sting. Treat the anxiety alone and the ADHD keeps refueling it. The tank never empties because the pump never stops.
Break that loop and the anxiety treatment finally has a chance to hold.
The mechanism
About 1 in 5 children with ADHD also meet criteria for an anxiety disorder (18.4% pooled across 121 studies, Njardvik et al., 2025), and others carry sub-clinical anxiety. The relationship is bidirectional and compounding.
ADHD generates anxiety: chronic failure, repeated social rejection, the unpredictability of a brain you can't rely on, and rejection-sensitive dysphoria all produce real, earned anxiety. Anxiety worsens ADHD: anxious brains are hypervigilant and distractible, cortisol directly impairs working memory, and the avoidance anxiety drives prevents the skill-building that would reduce the ADHD failures. Each condition is the other's accelerant.
And here's the trap: anxiety is more visible and more socially recognizable than ADHD, so many kids get diagnosed with anxiety alone. The ADHD goes unseen, keeps producing failure, and the anxiety treatment stalls, a treatment-resistant cycle that's really an undiagnosed-comorbidity problem.
It shows up in four recognizable presentations: performance anxiety (perfectionism as armor against the embarrassment of effort that led to failure), social anxiety (RSD making social situations feel physically dangerous), generalized worry (executive dysfunction means the brain can't prioritize worries, so every one feels equally urgent), and physical symptoms (the body voicing what the child can't yet name).
The operating system
Five moves to break the cycle.
Look for the ADHD under the anxiety
If anxiety treatment keeps stalling, ask whether undiagnosed ADHD is generating the failures underneath. The tell is a cycle that resists treatment: the worry keeps regenerating no matter how well the anxiety is managed. Treating both is what finally lets either improve.
Performance anxiety: separate effort from outcome
ADHD-driven failures teach the brain that effort leads to embarrassment, so perfectionism develops as defense. Counter it by valuing effort over the grade in all your feedback: "I'm proud you tried" matters more than the score. Make first drafts ungraded too, so trying stops being dangerous.
Social anxiety: graduated, supported exposure
When RSD makes social situations feel physically dangerous, forcing attendance backfires. Use gradual, supported exposure: one friend at a time, structured activities, never forced. And validate the fear first; the child needs to feel understood before they can risk the next step.
Generalized worry: contain it
Because executive dysfunction makes every worry feel equally urgent, give the worry a container. Use the "worry box": write each worry on paper and put it in a physical box, with a designated 15-minute "worry time" each evening to go through them. You're giving the brain the prioritization it can't do on its own, not dismissing the worries.
Physical symptoms: take them seriously, then connect the dots
Frequent stomachaches and headaches, especially before school but not on weekends, are often anxiety the child can't yet name. Take the symptoms seriously and rule out medical causes first. Then gently connect the pattern: "I notice your tummy hurts on school mornings but not Saturdays." You're giving them language for what their body already knows.
The printable: the four presentations
Print it. Match the presentation to the strategy.