At that time, he was having lots of verbal tics, strange behavior, slow language development,
and obsessive scribbling on paper then waddling it up
and throwing on floor (he started kindergarten, and I got impression he was stressed about learning to write), he did this for hours at a time! So, a very renowned neurologist put him on a low dose of Guanfacine that worked like a charm! The tics disappeared totally!