So my 9 year old mare does this thing when she gets nervous. She rolls her head around in a circle to calm her self down. And sometimes she does this when I'm riding her, so I was wondering how to stop this behavior. The main reason I want to stop this is because while she is doing this the reins can swing to the other side of her head, and while she does this she stops listening to me.
I know that I should be the one that makes her comfortable but sometimes she just gets really nervous.