Now ADHD and its comorbid forms I am all too familiar with. Should you go this route decide at the start which of the three manifestations of ADHD he has.I hadn't thought of him having ADHD but I'll have to do more research into it. From the very basic understanding I have, I know that it would already suit him fairly well alongside the traits I've already decided for him. I think after more research I can make sure it's implemented properly. So, thank you for letting me know!
Inattentive- Can't remember things but isnt particularly violent, impulsive, or reflexive. Easily forgets things, generally these are actually extremely humble and come of as very meek. They are prone to anxiety and depression
Hyper active- Flip inattentive. This version has a lot of trouble with impulsive aggression, moro/primal reflexual response, and generally very low impulse control. Most people also mistake this for one of the pathies (socio or psycho) as the aggression coupled with "apathy" or the emotional shutoff that accompanies combined and hyper type.
Combined (most common type)- has the features of both. How severe it is ranges from person to person.
Also, I had not thought of this but ASD and ADHD very much enjoy and like tactile sensation especially fur, scales, and feathers. Ie we REALLY like soft things. For example, I have a siberian husky for my adhd. One of her primary purposes is to lay on top of me when I am pacey so I will hug her, pet her, or play with her ears. It would not be unlikely that Ward would mess with his ears when alone or have a very soft pet. Animals relax both ADHD and ASD. Here is a picture of the dog added so you can see what I mean by super soft.