My family came through the blessing of adoption so my biological connections are to sisters and generations of neices and nephews.
At least one nephew 2 great nephews and one great Neice have ADHD none with obvious tics except my Dad and 2 older sister with body tics.
Because I was born with crossed eyes all focus on my tics was related to wearing glasses 🤓 beginning at age 4.
If you can get your little guy to experience facial relaxationk , he might feel the difference and eventually realize the difference between tense and relaxed.
I rarely remember the huge difference.
Enjoy your amazing child and his special gifts.🤗