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Can laziness and forgetfulness at 26 be due to ADHD?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

I am 26, and for years I thought I was just lazy or disorganized because I constantly forgot deadlines, lost important things, and struggled to focus, even during conversations. Recently, my younger brother was diagnosed with attention-deficit hyperactivity disorder, and many of his symptoms sounded exactly like mine growing up.

I have changed jobs twice because I keep falling behind, despite trying very hard to stay organized. What usually helps adults finally realize they may actually have ADHD instead of normal stress or personality issues?

Should I ask for formal psychological testing, or can a psychiatrist diagnose it directly? Also, can untreated ADHD lead to anxiety and burnout over time?

Please advise.

Thank you.

Hello,

Welcome to icliniq.com.

I have read your query and understand your concern.

The diagnosis of attention-deficit hyperactivity disorder (ADHD) is primarily based on clinical history. A psychological evaluation is not always necessary to diagnose a psychiatric condition. Psychiatrists make the diagnosis based on a specific set of symptoms and their impact on daily functioning.

For the diagnosis of ADHD in adults, five or more symptoms of inattention and/or hyperactivity-impulsivity should be present for at least six months, along with significant impairment in daily activities and other areas of life.

Common symptoms of inattention in adults include procrastination, disorganization, forgetfulness, losing important items, being easily distracted, avoiding tasks that require sustained mental effort, difficulty completing tasks, and making careless mistakes.

Common symptoms of hyperactivity and impulsivity in adults include impulsive decision-making, internal restlessness, impatience, fidgeting, excessive talkativeness, interrupting conversations, blurting out answers, difficulty sitting in one place for long periods, sleep disturbances, and substance use.

You can also assess yourself using the adult ADHD self-report scale questionnaire. Please get back to me after completing the formal assessment and sharing your score.

Untreated ADHD in adults may lead to occupational difficulties, an increased risk of substance use, and a significantly higher likelihood of developing anxiety and depressive disorders.

I hope this information helps.

Thank you.

Medically reviewed byiCliniq medical review team

Published At May 16, 2026
Reviewed AtMay 16, 2026

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