My Mom (61) is walking in circles and falls on a daily basis. Any ideas on preventing her from walking around too often?

My mom walks around in circles constantly to the point where she will fall and lose her balance. Additionally, her back is going off to one side (left) as a result. Does anyone's loved one do this as well, and has anyone ever had an idea on how to prevent their loved one from walking around in circles too often? She will sit down less than a minute and start walking around again.