what is also possible is that brushing teeth with toothpaste is not a natural occuring procedure and since most toothpastes contain sodium flouride it is deterimental to health so that may be the reason you have the urge to oil pull again, not sodium flouride is a hazardous industrial waste material that is very costly to dispose of and lucky for our intelligent government they dispose of it in our water and toothpastes, it was also used by hitler in the conentration camps water to make the prisoners more susceptible