I started doing some research (prior to speaking with my psychiatrist) and started noticing some ADHD-esque behaviors in my toddler. I'm not looking to get them diagnosed (yet?), because who knows what is "normal young kid inattentiveness and hyperactivity" versus anything else, but ADHD is absolutely hereditary and a family history is one aspect that is/was used to diagnose.
This is a good resource I've read (well, listened to the audiobook of..): https://www.amazon.com/Driven-Distraction-Revised-Recognizin...
For what it is worth I found a lot of comfort in the audio book version of "Driven to Distraction". Somehow listening to others struggle made me feel not alone in the battle with one's mind. https://www.amazon.com/Driven-Distraction-Revised-Recognizin...