my son has had transcient tics for several years and he has just turned 5. He heavy blinks, throat clears, coughs (some times separate, some times together). . . it is scary and makes me worried for him in school and in the future . . .
as soon as one goes, another appears . . . . i talked to his pediatrician and his therapist (long story short, my children are adopted and i had one child go home after being with us a year which took a toll on the family . . . so off to therapy) . . . tics were there prior to, but came out strong during that transition (more often and more obvious) . . . .
everyone tells me not to worry or not to dwell on it, but all i can think of is how it will affect him when other kids start pointing it out . . . or making fun . . . his birth mom heavy blinks and her hand shakes when she is anxious/stressed . . . so i think his is genetic . . . .
i just recall the doctor saying to watch him when he sleeps . . . if he doesn't do it in his sleep, it is a tic . . .
it is so hard for me not to worry for him . . . but we were told repeatedly to ignore it . . . they actually do it more when you focus on it or try to make them stop . . . .
good luck . . .