my son has been about 99% controlled on the diet so we started weaning his zonogran over 12 weeks and he has been fine..we ll we finished up his last dose a week ago and 5 days ago he started having daily little head bobs maybe 2-3 a day.. how long can withdrwal sZ last and can this be what it is? im so saddened to see Sz activity after 4 months with none and praying this is just transient? anyone ahve expereince with withdrawl Sz?