Can anyone tell me what to do? Both my approximate 4mo old Silkies keep jerking their heads. However one of them, the little black one is also doing a really weird movement with her head as well. You can see it clearly in this video. They are eating and drinking and active so far. I'm really very worried. Thank you for any help you may be able to provide.
https://linksharing.samsungcloud.com/vXM5yjH03Pjq
https://linksharing.samsungcloud.com/vXM5yjH03Pjq