About notadhd.com

ADHD assessment is more accessible than it's ever been. That's largely good — many adults who genuinely have ADHD finally have a path to diagnosis. It's also produced a side effect: the conditions that look like ADHD, but aren't, get less attention than they used to.

notadhd.com exists for the people in that gap. The screener and the differential guides are designed to help you ask sharper questions before, during, and after an ADHD assessment — not to discourage assessment, but to make sure the assessment is genuinely a differential.

What we're not

• Anti-ADHD-diagnosis. ADHD is real, common, and underdiagnosed in some groups.
• Anti-medication. Stimulants and non-stimulants are evidence-based and life-changing for the right patients.
• Diagnostic. The screener compares patterns, not diagnoses conditions.

What we are

• An honest reminder that several conditions look like ADHD on a 15-minute clinical visit.
• A way for people to bring sharper, more specific questions to their clinician.
• A reference for the major differentials, written in plain language.

Editorial principles

Content is written from current diagnostic standards (DSM-5-TR, ICD-11), major clinical guidelines (NICE, AAP, AACAP), and standard differential-diagnosis literature (Kaplan & Sadock, NICE NG87). It's reviewed by clinicians before publication and refreshed annually.