One of my female cats started doing something like that at about age 10. Come to find out all I needed to do what change her food. Sometimes it's a simple change that you can make to correct it, type of food, change to filtered water, type of kitty litter, etc.

My big girls are now 13 and 11, and we have a little stinker male that's about 6 months..... boy does he like to make the girls mad!! lol