If ADHD is recognized as a disability it’s also because it can significantly impact a person’s quality of life, even if some individuals learn to manage their symptoms, if you had to manage your issue I understand it may not have been for free
I’m not involved in art at all however you seems to not be alone at all; take a look at :
Hello,
I’m a 40y with full aphantasia, and I don’t have any issues falling asleep. I have obstructive sleep apnea (OSA) and use a CPAP, but I’ve never had any trouble falling asleep.