20110922~Tic disorder?

Although Tic disorder is common on children, it worries me as a parent. Hereunder is brief observation data I would like to start note down for my dear KK.


KK- Tic disorder?

1st time :
age: around 2 and half
occasion: after bounce-a-rama extremely play
symptom: blinking eyes hard frequently
duration: remain 1-2 day.

Then:
age: around 3 and 3 1/4
occasion: unknown
symptom: blinking eyes excessively
duration: remain 3-5 day, on-and-off.

Now:
age: around 3 and half
occasion: unknown
symptom: blinking eyes excessively and frequently, morning, after nap, playing,
duration: daily and more frequent, remain few weeks so far since 09/B/2011.

side info
KK himself- blood test done 09/19/2011
Grandma - head-shaking, especially when focus such as thinking, eating
Sister - seizure on 09/07/2011