Hello Missy81 how is your son doing mine 7yr old started doing that since August of 2021. However his tics have changed to different ones I have read a lot of things about this topic but it’s very frustrating for us the parents see them. I had mine in gluten free diet but it didn’t really make any difference not sure what really causes this but what I can recommend you is to keep your kid active and give him a lot of water. I just hope one day my kid stops doing it but only God knows when.