Thank you for sharing this, Chemar. What a great reminder for readers to revisit the role of magnesium, which we talk a lot about on this forum.
For some it could mean going back and giving it another try. Or, it could be giving magnesium for the first time. It's great that in the case you mention, there was an immediate calming effect on tics so it was clear it was working. If giving it a try, give it each day, as it does not stay in the system long. And, start slow in case it could cause more of a laxative effect than you want.