9month kitten throwing up periodically for about 15hrs.......?

It is absolutely VITAL that you get fluids into the poor thing!!! Dieing of dehydration is very GREAT at this point. Don't dilly dally around for an amateur answer, Please get vet help ASAP. If you can't get to a veterinary that is open then they will usually have an emergency hotline of some sort to call. This is serious, and not to be taken for granted. Get down some FLUIDS ASAP!!!