A new survey reveals that 25% of adults in the U.S. suspect they may have undiagnosed ADHD, though only 13% have consulted a doctor.

More than 15.5 million U.S. adults have been diagnosed with ADHD, and nearly three-quarters of those taking medication to treat it say drug shortages are hampering their ability to get help, a new report finds.

ADHD is a mental health condition that has typically been diagnosed in children, usually boys, who struggle to concentrate at school. Videos online about ADHD in adulthood, especially among women, have spread awareness about the condition—and led to many theorizing that they may have it too.

Often with adults, they tell me that their parents didn’t believe they had ADHD, that it was frowned on, the school system didn’t support them, or they were stigmatized not