(for context, i have adhd and anxiety and stim because of it, and have always felt the physical internal pressure to tic but it was never relieved until lamictal) 
my so a few months back i was on lamictal for a solid few weeks, and i was doing pretty good, albeit i dont remember much cus my memory is terrible. 
after a night of moderate drinking, i had a tic attack (verbal and physical) and i’ve had them ever since (they increased to an attack a few more times while drunk, and persisted when i was sober as well) 
i went off lamictal and now dont experience attacks when drinking generally, but i still have tics almost daily. especially stress induced. im not really worried about them stopping because they arent interfering too much with my daily life, but they do cause pain and are annoying. 

this is just my story in case anyone is worried about tics!