Recently, my little girl has started to look right up at the ceiling with her eyes so I can see a lot of the whites of her eyes and shake her head from side to side in sort of like an 's' movement. She only does it for a few seconds and seems to be in control when she does it. It seems to be becoming more frequent over the last couple of days and is often when she is in her highchair.
I'm just wondering whether this is normal or whether it is something I should be concerned about? Could this be some sort of seizure or is it a normal developmental thing?