Dammit, every time I read one of these ADHD posts I'm like, that personality trait of mine I've had since childhood is ADHD too? I'm too old for this shit. If they could just drop the H I could accept it but I'm lazy af. I'll just wait a few more months and let them decide I have Alzheimer's instead.
Hyperactivity in adults is often masked or internalized. If you keep yourself tapping a rythm, bouncing your leg or repeating some tune in your head over and over you might just qualify for further diagnosis.
ADD used to be a separate diagnosis, but now they classify both as subtypes of ADHD: Primarily Hyperactive or Primarily Inattentive. I'm ADHD-PI and can't relate to stereotypical hyperactivity at all.
It took them years to figure it out with me. I was in high school in the mid 90s before they diagnosed me with ADD, and gave me a prescription of Adderall and unleashed me on university a year later.
I wish I had been able to be medicated a bit longer, but the few years I had it gave me some good habits.