I suggest it would be a wiser option to take him to a PD. This is to ensure that everything is alright. And even if it happnens that there might be something more, at least it would be detected early. Sometimes it has nothing to do with supplements but rather other issues such as focusing or ADHD. With that being said, speculating won't be helpful. I would take him to the PD.
Stay calm, cool and collected.
Have a blessed day ahead.