My 6 yr old grandson will blink his eyes as normal but he also will hold one blink longer and at the same time he lowers his head. Sometimes his eyes will also roll and it takes him a few seconds to answer you. This is something that he has never done before just started 2 days ago. When I ask him about it he says his eyes tickle and when I ask him how they tickle he says they feel bumpy. Any thoughts??
The differential diagnosis for this includes allergies, tic disorder, and minor seizures.  It is critical to have the child evaluated to distinguish the underlying cause of this.