Hi, I am 16 years old and have been on
concerta for almost a year. I know all about the ticks because I got the same thing, even blinking, clearing my throat, and rolling my eyes constantly. My mom and I were worried about this at first, but I stayed on the meds. The ticks eventually went away along with all the other side affects. I have no permanent damage and to be honest I am so glad I stayed on the concerta, i am focused and my head is more clear than it's ever been.