There's so much overlap with ADHD, Autism, and several mental health conditions.... I feel like they're related and we just don't understand any of it well yet.
I recently found out about visual snow, which I definitely have (mild) and didn't realize was NOT the way everyone sees the world. AND it's associated with migraines and tinnitus. It's suspected to be caused by "excessive excitability of neurons in the visual cortex".
